CLASS XII – PHYSICS Sample Paper Time allowed : 3 hours Max. Marks : 70 General Instructions: All questions are compulsory There are 30 questions in total. Questions 1 to 8 carry one mark each, 9 to 18 carry two marks each, 19 to 27 carry 3 marks each and 28 to 30 carry 5…… Continue reading CLASS XII – PHYSICS Sample Paper II

# Tag: point

## A problem from Optics

A convergent beam of light passes through a diverging lens of focal length 0.2m and comes to focus at distance 0.3m behind the lens.Find the position of the point at which the beam would converge in the absence of lens?

## A Numerical Problem – Kinamatics

A particle is thrown vertically upward with a velocity of 19.6 m/s. Find (a) the acceleration of the particle at the highest point. (b) How high the particle will rise? (c) Time taken for rising to highest point.

## Jaz posted this question from electrostatics

“I’ve tried so many times, but I’m unable to arrive at the correct equation; See attachment for question” Question Jaz posted this question E=k(2λ/r) due to positive wire E’=k(2λ/(D-r)) due to negative wire The r…

## What will be the zero spot in electric field lines of 2 opposite charges?

Taha asked this question – what will be the zero spot in electric field lines of 2 opposite charges?” Answer: I think the question is about null point. When the charges are of opposite sign, the null point (also called neutral point) is not in between the two charges, but is outside the line joining the […]