- Two point charges of 16 micro coulomb and -9 mC are placed 8cm apart in air.in which position the electric field become zero?and how we find this solution generally Asked

## How was CBSE Maths 2016?

**CBSE Maths 2016 for class XII** is now one of the most discussed topics. How was the paper?

There are as usual mixed responses. Even the bright ones complained that the paper was lengthy.

Post your

## Motion in a vertical circle and conservation of energy

A stone tied to a string of length l is whirled around a vertical circle with the other end of the string at the centre. At a certain instant of time the stone is at the lowest position and has a

## A light year is the distance light travels in one year . How many meters are there in one light year?

The speed of light in vacuum is 3 x 10^8 m/s. That means in one second it travels 300000000 metres. As we know, in one year, there are 365 days; in each day there are 4 hours; in each hour there are 60 minutes and in each minute there are 60 seconds. Therefore, the distance [...]

## A Numerical Problem from Projectile Motion

A short is fired from a gun on the top of a hill 90m high with velocity 80m/s at an angle of 30 degree with the horizontal. Find the horizontal distance between the vertical line through the gun and

## XII Physics :: Some useful downloads and links

## A question from kinematics – motion in one dimension

Natasha Sehgal Asked:

“A stone is thrown in a vertically upward direction with a velocity of 5m/s. If the acceleration of the stone during its motion is 10m/s^2 in the downward direction , what