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

No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question

What is quantized?

Posted by Vinay Thakur 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ishika Tanwani 7 years, 11 months ago

It means that can take only particular values such as q =ne i.e q is only integral multiple of e

ANSWER

What is the minimum value of refractive index required for a rifht angled isosceles prism which is used to deviate beam through 90 by total internal reflection

Posted by Dishant Dhingra 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Do electromagnetic waves carry energy and momentum? 1mArk

Posted by Arsh Brar 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ankita Vats 7 years, 11 months ago

Yes,it carry.

ANSWER

A concave mirror forms a real image four times as tall as object placed 10 cm in front of a mirror. Find the position of the image and the radius of curvature of the image

Posted by Pratyushaa Pritipadma 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Nitin Murali 7 years, 11 months ago

Use magnification and mirror formula

ANSWER

Which lens in our eye

Posted by Vishal Verma 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Shatabdi Biswas 7 years, 11 months ago

Convex

ANSWER

Why side band signals are not sent directly

Posted by Shivya Shrivastava 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Force of attraction between two point charges placed at a distance of d is F. What distance apart they are kept in the same medium, so that, the force between them is F/3

Posted by Ujwal Avhad 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ankita Vats 7 years, 11 months ago

3d

ANSWER

Numerical coming from ncert or not

Posted by Shreel Maurya Shreel Maurya 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Jaya Maheshwari 7 years, 11 months ago

Offcouurse...

ANSWER

How to get 90+in physics in one month

Posted by Sai Dhanush 7 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Ankita Vats 7 years, 11 months ago

It may not be possible.

Sheikh Zameer Ahmad 7 years, 11 months ago

Padhai krke

ANSWER

What is lateral distance?

Posted by Sheetal Wankhede 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Nitin Murali 7 years, 11 months ago

Perpendicular distance between the emergent Ray and the projection of the incident Ray

ANSWER

limitations of cyclotron

Posted by Abhilash Puttu 7 years, 11 months ago

CBSE > Class 12 > Physics

4 answers

Ankita Vats 7 years, 11 months ago

Don't accelerate heavy particles.

Mehak Suidui 7 years, 11 months ago

Is do accelerate positive charge particle rohan's ans is wrong

Abhilash Puttu 7 years, 11 months ago

-cyclotrones cannot be used accelerate electrons -uncharged particle cannot be accelerated by cyclotron

Rohan Saini 7 years, 11 months ago

Does not accelerate positive charge particles.

ANSWER

what is boolean algebra

Posted by Anjali Tamboli 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is the advantage of drag

Posted by Shyamoli Gogoi 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

From which date cbse 12 practical are start

Posted by Utkarsh Saxena 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Mahesh Gautam 7 years, 11 months ago

In between 15jan to 31 jan

ANSWER

Concept of displacement current

Posted by Sahil Verma 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

How is a transistor biased to be in active state?

Posted by Rainish Dhiman 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Is future decided? I mean no physic law can ever be broken and the entire universe is run by certain rules Does it mean our future already decided at the time of the birth of universe Because at the birth of universe at the very moment some phenomena like movement of particles or conversion of energy into matter The second thing happened acc to some certain permanent laws Then the secord thing happened Similarly 4 5 6 7 etc etc happened Then present and then future So future is already decided Theory of shivam singh

Posted by Shivam Singh 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Abhinay Ab 7 years, 11 months ago

Yeah! Its true Future is already decided and no one can change it.

ANSWER

Distribution of charges on sherical surfaces

Posted by Pratham Agarwal 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Megha Saloni 7 years, 11 months ago

equal

ANSWER

Working of van de Graff generator ???

Posted by Ishika Tanwani 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is choke coil

Posted by Ragh G 7 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Ragh G 7 years, 11 months ago

To what is choke

Ayush Das 7 years, 11 months ago

coil which chokes

ANSWER

Physics chapter wise marks

Posted by Harsh Kothari 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ayush Das 7 years, 11 months ago

each chapter less than 70

ANSWER

Tomorrow is my physics exam what should I do to get above 30 marks, I don't know anything about any chapter.

Posted by Khetra Mohan 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ayush Das 7 years, 11 months ago

dont attend exam

ANSWER

Two small charged sphere contain charges +q1 and +q2 respectively. A charge dq is removed from sphere carrying charge q1 and is transferred to the other. Find charge on each sphere for maximum electric force between them.

Posted by Suman Kanjilal 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Harsh Kumar 7 years, 6 months ago

After transfer of charge dq you charge on sphere one will be q1 - Dq and charge on second square will be q2+dq so after that we have to find the coulomb force between the two squares and that is f=[(K q1- DQ )(q2+DQ)] / r². so after that we will differentiate both sides and the force will be maximum when differentiation of F is equal to zero so after that we will get 0=K(q1-q2-2dq)/r² so finally after that we have to find the value of DQ then we will substitute the value of DQ in the above equation then after that we will find Q1 and Q2 charges that's what we have to do in this question

ANSWER

Convert N/kg into m/twice second

Posted by Rishav Thakur 7 years, 11 months ago

CBSE > Class 12 > Physics

3 answers

Shivam Singh 7 years, 11 months ago

Abe uske paas hoga tabhi to lagayega

Abc Kamboz 7 years, 11 months ago

N can be written as 1kg * 1 m/ s square .Putting the value of N in N/kg we get m/ s square..

Shambhu Kumar 7 years, 11 months ago

Thoda toh dimaag Laga Le Bhai

ANSWER

Propagation of em waves

Posted by Shrutika Dixit 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ayush Das 7 years, 11 months ago

heat a pan on stove. add some water and make a jump into it

ANSWER

Draw a labelled digram of ac genarator.drive the expression in the coil

Posted by Praveen Yadev 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ayush Das 7 years, 11 months ago

print a picture of dam

ANSWER

Speed of light in vaccum

Posted by Khushi Agrawal 7 years, 11 months ago

CBSE > Class 12 > Physics

3 answers

Ayush Das 7 years, 11 months ago

less than pulsar

Shambhu Kumar 7 years, 11 months ago

3 into 10 ki power 8 metre per second

Kriti Jaiswal 7 years, 11 months ago

3x10^8m/s

ANSWER

What is electromagnetic waves

Posted by Prakhar Gupta 7 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Shivam Singh 7 years, 11 months ago

The waves in vich varying electric n magnetic waves are perpendicular mutually to the direction of propagation n don't need medium to prpagate

Shambhu Kumar 7 years, 11 months ago

These are the waves which are perpendicular to both electric field and magnetic field and need not medium to propagate

ANSWER

When does current flow in an electric circuit ?

Posted by Sakshi Verma 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Shivam Singh 7 years, 11 months ago

In difference of potential difference

ANSWER

How to prepaired get good mark in last 2month

Posted by Pushkar Singh 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Tanisha Brar 7 years, 11 months ago

With.determination and.single mindness u have to do all the imp topics first then do something else

ANSWER

Page 614 of 739

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Google Play

Download myCBSEguide App