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Explain how does (i) photoelectric current and (ii) kinetic energy of the photoelectrons emitted in a photocell vary if the frequency of incident radiation is doubled, but keeping the intensity same? Show the graphical variation in the above two cases.

Posted by Kartik Bhujeja 7 years, 10 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A short electric dipole having two point charges +q and -q is placed at the centre C and inside a.large cube of side l. what will be the electric flux,emanating through the cube？

Posted by Salman Arora 7 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Shruti Jain 7 years, 10 months ago

Zero.since the net charge enclosing the cube is zero.

ANSWER

How many types of galvanometer

Posted by Aparna V Sunil 7 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Aman Deep 7 years, 10 months ago

Two types moving coil and tangent galvanometer

ANSWER

A long straight current carrying wire passes normally through the centre of circular loop. if the current through the wire increases,will there be an induced emf in the loop？justify.

Posted by Salman Arora 7 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Shruti Jain 7 years, 10 months ago

Yes.because as the current increases magnetic flux through it also increases and hence the emf will be induced.

Aman Deep 7 years, 10 months ago

Since current changes since there is change in a flux of magnetic field so there is induced current in loop and also sin 90 is 1 according to biot-savart's law

ANSWER

Does the charge given to metalic sphere depend on whether it is hollow or solid ？give reason for your answer

Posted by Salman Arora 7 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Shruti Jain 7 years, 10 months ago

No.in case of mettalic sphere tge charge resides through irs boundary

Aman Deep 7 years, 10 months ago

No because due to repulsion of similar charges in a sphere it try to come on the surface so there is no difference between hallow sphere and metal solid sphere so

ANSWER

In which direction would a compass needle align if it is taken to geographic north pole

Posted by Aisha Grewal 7 years, 10 months ago

CBSE > Class 12 > Physics

6 answers

Aisha Grewal 7 years, 10 months ago

No

Ritu Gupta 7 years, 10 months ago

Downward

Aisha Grewal 7 years, 10 months ago

Like Kon kr rha h

Aisha Grewal 7 years, 10 months ago

Dene wala

Aisha Grewal 7 years, 10 months ago

Koiiiii h answer done wala????

Aisha Grewal 7 years, 10 months ago

Answer plzz

ANSWER

Binding energy

Posted by Sajal Mahato 7 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Joining energy per nucleon

ANSWER

Show that is esiear to pull A lawn roller than to push it

Posted by Kunal Gupta 7 years, 10 months ago

CBSE > Class 12 > Physics

6 answers

Aisha Grewal 7 years, 10 months ago

Not that

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Jishnu

Prachi K 7 years, 10 months ago

Line mat maro

Aisha Grewal 7 years, 10 months ago

Whats your real name j b

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Pull karte samay friction bhi pulling direction me lagta hai aur push karte samay opposite direction me

Aisha Grewal 7 years, 10 months ago

Dhkkaa Mar k dekh l ???????... I don't know.. Just joking

ANSWER

Explain process of motor starter?

Posted by Tannu Pal 7 years, 10 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why transformer doesn't work on d.c.

Posted by Tannu Pal 7 years, 10 months ago

CBSE > Class 12 > Physics

32 answers

Amanul Haque 7 years, 10 months ago

rate of change of flux is zero as dc is constant current which produces constant magnetic flux.d(phi)/dt=0 emf=0

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Tannu knowledge hai to uska use bhi karna chahiye....

Prachi K 7 years, 10 months ago

Haye tanu ka dil tut gaya j b...ab nikal yahan pe se

Tannu Pal 7 years, 10 months ago

Vithika aap ki Kuch lagti Hai ya NAHI muje use Kuch nahi karna lakin tameez see baat karni chahiye ..... Kise se bhi

Prachi K 7 years, 10 months ago

Nhi suhagraat mana k ayi h

Tannu Pal 7 years, 10 months ago

Abuse words Sab ko pata hote Hai but har Koi use nahi karta ha mujhe pata Hai

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Abc kya sasuraal simar ka dekh ke aai hai kya ......kaise serial wale dialogue maar ri hai

Prachi K 7 years, 10 months ago

Bhag bhosdiwali bhasan khi aur Dena.. Lg raha h sab ka thika lekar rakhi h Jldi nikal yahan pe se

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Tannu tum apni soch bahar nahi nikal rahi vo nikaal rahi hai......gande words tumhe bhi aate hai....nahi aate hote to tumhe pata nahi chalta ki vo abuse kar ri hai...

Abc Efg 7 years, 10 months ago

Vithika.. I don't even want to talk you.. anymore.. But one thing I want to say u that... ...... Tu kitni niche insan h na. Vo aj tu dekha dii.... Or ye bhi ki tuje Kya snskar mile h... Tere ghr me tuje Kya sikhate.. h.. .... I know ur family is very good.. but what u r doing ..... Atleast .... Apne family ka respect bhi bhulgai h Kya.. apne parents ke diye hue snskar... Sb bhul gai h kya.. ye pura social app h yaha Jo tu post krti h sb dekre h... Even u don't know me .... Nor anybody in this app agr glti SE koi tumhare pehchan vala pd legaa to tum apna my dikhane lyk ni bachogii Even agr Mai tumhare jaan pehchan vali nikl gaii to sochoo Mai tumhare parents ko bataungii to vo bhi sharm karenge Tere upr.... So plz be in ur limit

Prachi K 7 years, 10 months ago

Ldki h wo bhi bht sundar isliye kisi chij ki kami nhi h mere pas

Tannu Pal 7 years, 10 months ago

Kyu bolti band ho gayi Tere

Tannu Pal 7 years, 10 months ago

Tu ladki Hai bhi Ke nahi because aaj take Maine kise ladki Ke mhu see ase words pehle kabhi nahi sune

Prachi K 7 years, 10 months ago

Ale le nhi bacha tanu tmko chod dega jb tum tension na lo

Tannu Pal 7 years, 10 months ago

Mujhe Tere tarha Gandhi ya abuse language nahi aati that's why I am telling you like that just go away from this app

Tannu Pal 7 years, 10 months ago

Muje khane see phele khud ko dekh tu Hai aese jabhi kise need j b Ka naam liya to tuje laga ki yo gaya

Prachi K 7 years, 10 months ago

Lauda legi muh me bhosdi k bhag yaha se

Abc Efg 7 years, 10 months ago

Kyo Tere ko koi ni milra h kyaa.. Jana bhag yaha see.. kahe bar bar apna chehra dikha ri h.. koi bhaw no Dera h Kya Tere ko.... Vithika...

Tannu Pal 7 years, 10 months ago

Gande logo ki Gandhi Socha jaise khud wese soch

Prachi K 7 years, 10 months ago

J b tujhe ek one sided lover mil gayi

Abc Efg 7 years, 10 months ago

That's good ? tannu..

Tannu Pal 7 years, 10 months ago

Wase tuje kyu itni jyelus ho rahi hai

Tannu Pal 7 years, 10 months ago

Phele tameez shike Ke aa tab baat karna werna Koi zarurat nahi Hai ok understand

Tannu Pal 7 years, 10 months ago

Vithika I am not asking to you so don't interfere

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Assisi Noida

Prachi K 7 years, 10 months ago

S e x school me mere sath padhta h tjhe v padhna h kya

Tannu Pal 7 years, 10 months ago

In which school did you study

Tannu Pal 7 years, 10 months ago

Ok thnxx for telling me your real name

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Jishnu Bala

Tannu Pal 7 years, 10 months ago

What's your full name means j b

Tannu Pal 7 years, 10 months ago

Thnxx j b

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Mutual induction takes place in fluctuating current as this only can produce a magnetic flux

ANSWER

What is the S.I. unit of radioactivity?

Posted by Ajay Barak 7 years, 10 months ago

CBSE > Class 12 > Physics

19 answers

Prachi K 7 years, 10 months ago

Ale bacha Lund muh me legi

Aastha Singh 7 years, 10 months ago

Anyways ab tu kuch bhi bol mai tujh jaisi batmeez behaya ladki ko koi reply hi ni doogi tere chakar me pahele hi meta itna time waste ho chuka h bitch ab tu kuch bhi bol i don't care chal jattt kyoki teri to juban hi gandi h aise puri rat batmeezi bolti rahegi

Aastha Singh 7 years, 10 months ago

Oye bitch apni had me rahe kutti kahi ki suar ish sab ke bare me jitna dimag laga ri h na utna padhne me mn laga chal hattt bitch batmeez nonsence bloody fool bitch kahi ki kuch to sharam kr ye sb words use krte hue sharam ni aati vaise tujhe kaha sharam aayegi tu to paida hi beshram hui thi bitch

Prachi K 7 years, 10 months ago

Mere ghar k sare bade tre maa Behan KO chodne me bzy h

Aastha Singh 7 years, 10 months ago

Mujhe lagta h badatmeez tu yahi krti h ishliye tujhe bhut knowledge hai ishke bare me bloody batmeez kahi ki ghar me koi bada ni h kya tujhe tameez sikhane ke liye batmeez nonsence bloody fool

Prachi K 7 years, 10 months ago

Aur tu ka s e x kregi

Aastha Singh 7 years, 10 months ago

Batmeez nonsence bloody fool ish sab me mind lagane se accha h ki padhai me mind laga ni to fail ho jayegi samjhi bloody fool

Prachi K 7 years, 10 months ago

To s e x kr k mood banana h

Aastha Singh 7 years, 10 months ago

Hey batmeez ladki vithika apni had me rahe bloody ok tujhe yahi sb krna h na future me jake to tu jaan ish sb ke bare me samjhi

Aastha Singh 7 years, 10 months ago

But aage se batmeezi se bat mt kariyo

Aastha Singh 7 years, 10 months ago

Anyways chodo tm jaise logo se bt krke apna mood kharab ni krna h

Prachi K 7 years, 10 months ago

Chusne ka mtlb nhi janti kya..j b chuswa do yr ek bar

Aastha Singh 7 years, 10 months ago

Tameez se bt kr okkkk

Aastha Singh 7 years, 10 months ago

Hello J B what it mean

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Aastha chuslo

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Meri frnd hai

Aisha Grewal 7 years, 10 months ago

Curie,, Rutherford

Aastha Singh 7 years, 10 months ago

Hope it helps. .

Aastha Singh 7 years, 10 months ago

Besquerel (bq)

ANSWER

Which physical quantity has units JC-1

Posted by Anshul Rai 7 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Prachi K 7 years, 10 months ago

Electrostatic potential

Neeraj Sone 7 years, 10 months ago

Potential

ANSWER

Sample questions

Posted by Punam Mahanta 7 years, 10 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Sample papers

Posted by Punam Mahanta 7 years, 10 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Give me practical experiment vedio

Posted by Sanjeev Kumar 7 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

YouTube me search karna nahi aata kya?

ANSWER

Why like charge repll each other?

Posted by Rohit Thakur 7 years, 10 months ago

CBSE > Class 12 > Physics

4 answers

Abc Efg 7 years, 10 months ago

çünkü protonlar pozitif bir elektrik yüküne sahiptirler. ... Bu iki elektronun her ikisi de negatif yüklüdür, böylece kuvvet çizgileri itilir. Masraflar masum gibi itilir masraflar aksine çekin. İki elektron birbirlerini itmeye eğilimlidir çünkü her ikisi de negatif bir elektrik yüküne sahiptir....

Ayush Gupta 7 years, 10 months ago

Bhai desi bhasha me bole to agr tu ladka h to ladki ki side hi attract hoga nd vice versa... Aur agr dono ki side attract hota h to smjh le neutral h. .??.

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Are bhai jo hota hai so hota hai Iska koi answer thodi na hota hai

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

They dont like each other

ANSWER

Why electric field starts from positive charge give brief

Posted by Sandeep Yadav 7 years, 10 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why magnetic field lines a start from South to North

Posted by Sonu Sorahia 7 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Hota hai to ..hota hai...... Aur kya.

ANSWER

The figure shows a plot of three curves a,b,c showing the variation of photocurrent vs. collector plate potential for three different intensities having three different frequency incident on a photosensitive surface.point out the two curves for which the incident radiations have same frequency but different intensities

Posted by Surbhi Kumari 7 years, 10 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is polar and nopoler

Posted by Sonu Sorahia 7 years, 10 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

When capacitor block do? Give circuit condition? How it help in getting displacement current?

Posted by Abc Ch 7 years, 10 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why electrical lines does not form a closed loop like magnetic field lines?

Posted by Sumit Kumar 7 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Vidhi Rawat 7 years, 10 months ago

Because there is no electric field inside a charge body

Prachi K 7 years, 10 months ago

As electric field start from positive charge and end at negative charge

ANSWER

Intenal resistance depends upon ?

Posted by Sumit Kumar 7 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Prachi K 7 years, 10 months ago

Electrolyte solution

Vivek Saini 7 years, 10 months ago

Area of material

ANSWER

Expression for the orbital magnetic moment of the electron

Posted by Dharna Bhatnagar 7 years, 10 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is elliptical wavefront?

Posted by Lekha Raj 7 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Lekha Raj 7 years, 10 months ago

.........??

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Wavefront in elliptical shape

ANSWER

Why lines starting from the surface and terminating at the surface always makes a right angle Give reason

Posted by Karishma Singh 7 years, 10 months ago

CBSE > Class 12 > Physics

3 answers

Prachi K 7 years, 10 months ago

Becz work done is zero and cos 90 have value 0 so the angle between is 90 and they are perpendicular

Lekha Raj 7 years, 10 months ago

Same hr

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Because...... Oh no I Din't understand that question.......

ANSWER

Is questions are repeated?? how many questions are repeated

Posted by Sneha Shree 7 years, 10 months ago

CBSE > Class 12 > Physics

7 answers

Aastha Singh 7 years, 10 months ago

Thanks vidhi

Prachi Aryan 7 years, 10 months ago

But itna km time mai ye Sb Kuch kaise hoga??

Prachi Aryan 7 years, 10 months ago

Thanku

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Learn all derivations byheart Learn working and principles of all instruments Only 3-4 numericals come

Vidhi Rawat 7 years, 10 months ago

First do theory of all chapter and then conceptual and then do numerical. First of all start with easy ch like communication.

Sneha Shree 7 years, 10 months ago

Only 2 and 3 Question ?what can I do For a good marks in phy? I am soo poor in phy pizz?help

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

2-3

ANSWER

What is electric charge?

Posted by Aadarsh Kashyap 7 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Aadarsh Kashyap 7 years, 10 months ago

It is an intrinsic (PURE) property of an elementary particle which gives rise to electric force between the various objects. It is a scaler quantity. e= 1.6×10 ki power -19C

ANSWER

What is dipole and what is dipole movement?

Posted by Anjali Agnihotri 7 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Shivani Maan 7 years, 10 months ago

A system of two equal and opposite charges is called a dipole and the product of magnitude of either charge and distance between two charges gives the dipole moment.

ANSWER

Why diffraction takes place?

Posted by Aadish Bansal 7 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Lekha Raj 7 years, 10 months ago

Diffraction takes place when this condition is satisfied.

Lekha Raj 7 years, 10 months ago

Diffraction takes place when the size of the object is comparable to the wavelength of the light.

ANSWER

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