What keeps the particles of matter together?

View Answer

Sometime, a crackling sound is heard while taking off sweater during winters. Explain. [2 MARKS]

View Answer

When electric current is passed through a bulb, the bulb gives light because of

View Answer

The relationship between the focal length f and radius of curvature R for a spherical mirror is:

View Answer

While standing inside the water up to the waist height, it is very difficult to keep our feet under control. Why?

View Answer

Discribe how lightning occurs?

View Answer

In the figure given below, who is pulling whom?

View Answer

What are the Effects of Force ?

View Answer

Name the force which helps things to move and stop.

View Answer

What is 2F called in simple words?

View Answer

For the given diagram, which factor can be explained in a better way?

View Answer

To obtain a real, inverted and highly enlarged image, choose the suitable type of mirror and the position of object in front of it.

View Answer

3 Resistors one of them having a resistance of 12Ω when connected in parallel together across a battery of 44v draws a current of 22A these resistors when connected in series across the same battery draws a current of 2A. Find the resistance value of the other 2 resistors?

View Answer

Which mirror which always forms a virtual image?

View Answer

Derive the minimum distance of the obstacle from the source in order to hear a distinct echo. [3 MARKS]

View Answer