## Numerical Problems from Light

Madhu sent us the following problems from “Light”. Visitors can attempt to solve the problems by quoting the question number.

Most of the questions below are based on mirror formula and lens

## CBSE Physics MCQ for quick revision – Mechanics

• If the object is in equilibrium, the sum of all the forces acting on the object is zero.
1. Inertia
2. Force
3. Mechanical Equilibrium
4. Equilibrium rule

• A push or a pull on an

## Displacement and acceleration in real life

HOW DISPLACEMENT,ACCELERATION ACTS IN REAL LIFE PLZ GIVE SOME EXAMPLE. (The question was posted by Chandrima ) Answer: As you know, the displacement is the shortest distance between two points ; the initial point and the final point. The displacement is independent of the path followed by the object and this itself is the beauty [...]

## A Numerical Problem from motion

A small smooth object slides down a smooth incline plane, inclined at am angle 30 to the horizontal. What is

• the acceleration down the plane?
• The time to reach the bottom if the plane is 50m long?

The object is now thrown up the plane with an initial velocity me 15m/s ; how long does it