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

*Mass changes with speed but charge dont *Mass is always + but charge may be +, - *Charge can be redistributed in collision but remain same *The total mass of an object is always non zero but charge may be + , - , 0

1Thank You

Prakhar J 6 years, 11 months ago

Mass cannot be negative.......but charge can be positive or negative..

1Thank You

ANSWER

When will class 12 2019-20 shlabuls will be updated and when will we get books

Posted by Archana Rajpurohit 6 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Archana Rajpurohit 6 years, 11 months ago

Then why app is not update that and whats new

0Thank You

Brar ? 6 years, 11 months ago

New edition has already been out

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ANSWER

Is optics and optical instrument remove from class 12 physics?

Posted by Kumar Manglam 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ravi Tiwari 6 years, 11 months ago

Yes

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ANSWER

Is ray optics is in syllabus for 2019-20 session

Posted by Jacob Shukla 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Aditya Raj 6 years, 11 months ago

No, This chapter is transfer in to 11th syllabus from 2019,

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ANSWER

2 pith balls each of mass 5mg suspended by metre long string are given charges so that the charged balls got seprated by 120cm.find force between charges nd charge given to each ball and tension in the string of balls

Posted by Nidhi Aggarwal 6 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

ncert + previous paper are sufficient for 100 in physics or need other reference book like pradeep or sl arora

Posted by Tirthesh Jain 6 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Ayush Verma 6 years, 11 months ago

All material us required for physics exam

0Thank You

Amandeep Kumar 5 years, 10 months ago

Tere aukaat ke Baahar hai be...chorh de tu physics

2Thank You

ANSWER

I am going to class 12 which book will be best to score ? in CBSE board

Posted by Manju Srivastava 6 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Harsh Mishra 6 years, 11 months ago

If you know the answer, then why are you asking????? It's just NCERT, Dude which you just have to study completely to score 90+ marks in all subjects!!!!!

3Thank You

Manju Srivastava 6 years, 11 months ago

NCERT

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Two charges +Qand -Q are kept at point (-x,0) and (x,0) respectively in the plane find magnitude and direction of the net electric field at origin (0,0)

Posted by Astha Dewangan 6 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Relation between radius of curvature and focal length derivation

Posted by Charan C 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Alia Siddiqui 6 years, 11 months ago

F=r/2

0Thank You

ANSWER

What is Electric field due to dipole

Posted by Shakshi Rana 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Himanshu Arya 6 years, 11 months ago

Drive an expression for electric field due to electric dipole along its equatorial axis at a perpendicular distance r frome its center In this case we determine the electric field at a point p which is located on the perpendicular bisector of the line joining the two charge

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What is torque on dipole in uniform electric field .

Posted by Shakshi Rana 6 years, 11 months ago

CBSE > Class 12 > Physics