CBSE > Class 12 > Physics | CBSE Board | Homework Help

First fringe will be made at central maxima and the other one at a distance of n integer.means doosri wali ya to upr hogi ya neeche. Iska matlb usse Agli wali n+1 or hi to hogi..

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Jin Kazama 7 years, 9 months ago

Abe tu bol hi mut ???

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ANSWER

what is the ratio of the de Broglie wavelength associated with a proton and α-partical when they are accelerated by the same accelarated potential (V) ?

Posted by Anay Patidar 7 years, 9 months ago

CBSE > Class 12 > Physics

2 answers

Sachin Negi 7 years, 9 months ago

Wavelength of p : wavelength of alpha particle 1 : 2 root 2

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Pranav Rastogi 7 years, 9 months ago

Wavelength for proton =12.27/√V Wavelength for alpha particle=0.101/√V Thud ratio =12.27/0.101

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What is alpha , beta , gamma scattering

Posted by Tg Shubham 7 years, 9 months ago

CBSE > Class 12 > Physics

1 answers

Abhay Bhardwaj 7 years, 9 months ago

When a radioactive substance decay with a emission helium particle then alpha decay will occur. When a radioactive substance decay with the emission of an antineutrino and a electron then bita decay will occur. When a radioactive decay with only energy to get stable state then gamma decay will occur.

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What is LOS communication?

Posted by Sohaib Akhtar 7 years, 9 months ago

CBSE > Class 12 > Physics

3 answers

Abhay Bhardwaj 7 years, 9 months ago

Line of sight communication

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Baani N 7 years, 9 months ago

Sorry it was line of sight communication

1Thank You

Baani N 7 years, 9 months ago

Line of side

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Is feedback transistor is in syllabus of cbse?

Posted by Mayank Kushwah 7 years, 9 months ago

CBSE > Class 12 > Physics

1 answers

Vijay Rajpurohit 7 years, 9 months ago

Yes it is in syllabus

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Paper of physics easy or tough

Posted by Wolvrine Ro 7 years, 9 months ago

CBSE > Class 12 > Physics

3 answers

Abhay Bhardwaj 7 years, 9 months ago

I think this we get a easy paper because they gave us only one day for preparation.

1Thank You

Vijay Rajpurohit 7 years, 9 months ago

Paper it made for every one its for average expected

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Namami Shukla 7 years, 9 months ago

Yaar jb paper aayega to dekh lena....hum log bhi to tumhare saath hi paper denge na...

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How can I solve krichoff law questions easily plz tell

Posted by Deepraj Singh Chouhan 7 years, 9 months ago

CBSE > Class 12 > Physics

1 answers

Khushboo Rajvansh 7 years, 9 months ago

1-consider a close loop. 2-start moving from a point. 3-if current is in same direction, take it negative and multiply by resistance. 4-in right side write down emf, if you touch positive terminal then write negative in front of emf.

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How long distance communication can be achieved by sky wave propagation?

Posted by Rohit Bisht 7 years, 9 months ago

CBSE > Class 12 > Physics

1 answers

Abhay Bhardwaj 7 years, 9 months ago

Because In sky wave propagation we consider that a signal get reflected from ionosphere and get reflected in a large area. In this way a long distance transmission possible.

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Nuclear density independent of mass no beta and gamma decay

Posted by Amit Kumar 7 years, 9 months ago

CBSE > Class 12 > Physics

0 answers

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Why capacitor blocks d.c. any one know

Posted by Shivan Tiwari 7 years, 9 months ago

CBSE > Class 12 > Physics

2 answers

Pranav Rastogi 7 years, 9 months ago

As capacitative reactance is given as..1/capacitance ×angular frequency . Since angular frequency of d.c.is zero,capacitor offers infinite resistance .Thus current is zero.

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Rahul Poonia 7 years, 9 months ago

Bcoz frequency of d. c is 0 so capacitor provide infinite reactance to it

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ANSWER

why kinetic energy independent of frequenvy?

Posted by Subham Das 7 years, 9 months ago

CBSE > Class 12 > Physics

3 answers

Subham Das 7 years, 9 months ago

photoelctrons

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Rohit Bisht 7 years, 9 months ago

Kinetic energy of what?

1Thank You

Yashi Jain 7 years, 9 months ago

Derivation of cyclotron

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Derive expression for energy stored in ppc. Hence obtain the expression for the energy density of electric field. A fully charged ppc is connected across uncharged identical capacitance. Show that energy stored in the combination is less than stored initially in the single capaciter.

Posted by Nitin Verma 7 years, 9 months ago

CBSE > Class 12 > Physics

4 answers

Radhika Tyagi 7 years, 9 months ago

Ppc mtlb parallel plates capacitor

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Pranav Rastogi 7 years, 9 months ago

What does this ppc stands for?

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Ishu Chouhan 7 years, 9 months ago

ED= 1/2 Eo E2

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Ishu Chouhan 7 years, 9 months ago

Bhot badi derivation h ,refer ncert

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ANSWER

Gold foil order in Rutherford experiment

Posted by Shivanshu Yadav 7 years, 9 months ago

CBSE > Class 12 > Physics

4 answers

Shivanshu Yadav 7 years, 9 months ago

2.1x10^-7m

1Thank You

Ishu Chouhan 7 years, 9 months ago

All in one Arihant me Dekh lo ,samajh aa jayga

2Thank You

Shivanshu Yadav 7 years, 9 months ago

You know

1Thank You

Ishu Chouhan 7 years, 9 months ago

Order????

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Recently I took a online test of physics In which the questions was very easy I want to ask you that what will be the level of that s year board exam as compared to your online tests. Please tell me it is very important.

Posted by Aditya Kumawat 7 years, 9 months ago

CBSE > Class 12 > Physics

2 answers

Ishu Chouhan 7 years, 9 months ago

Dekho hame ni pta ki paper easy hoga ki tough because ham bhi 2018 ki hi exam denge????

3Thank You

Harshit Tewari 7 years, 9 months ago

U can do that for practice but don't think that in boards also u will get such easy questions

1Thank You

ANSWER

What is compound microscope?

Posted by Neha Kumari 7 years, 9 months ago

CBSE > Class 12 > Physics

4 answers

Shivanshu Yadav 7 years, 9 months ago

It is a device which is used to magnifying the point object

2Thank You

Ishu Chouhan 7 years, 9 months ago

Bhai etni acchi Hindi nhi h meri

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Harshit Tewari 7 years, 9 months ago

यौगिक सूक्ष्मदर्शी

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Rahul Poonia 7 years, 9 months ago

Book me dekhlo

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ANSWER

What is the order of charge field in a sphere

Posted by Shivanshu Yadav 7 years, 9 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

List of Important derivation of all the chapters

Posted by Harshit Bhatia 7 years, 9 months ago

CBSE > Class 12 > Physics

4 answers

Rahul Poonia 7 years, 9 months ago

Bhai sab pdna pdega

1Thank You

Ishu Chouhan 7 years, 9 months ago

Sab pado yrrr

2Thank You

Ishu Chouhan 7 years, 9 months ago

Current electricity : expression for drift velocityand its relation with I and J,, microscopic form of ohm's law, internal resistance, Kirchhoff's law,potentiometer ka principle

2Thank You

Ishu Chouhan 7 years, 9 months ago

Gauss law ki application,potential at any point, relation between K and jhai , expression for capacity of parallel plate capacitor, energy stored in capacitor, , electrostates se sab padna padega,

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ANSWER

Lorentz force?

Posted by Shivanshu Yadav 7 years, 9 months ago

CBSE > Class 12 > Physics