Physics
Which of the following is not a transverse wave?

All listed here
Radio waves
Light waves
Sound waves

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Physics
Rainbows are produced when sunlight :

Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction
Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction and internal reflection.
None of the given statements is correct.
Incident on raindrops hanging in the atmosphere is dispresed after suffering reflection.

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Physics
A boy is swinging a ball attached to a string in a horizontal circle. If the string snaps

The ball will travel towards the center of the circle and fall down
It will fall down at the same place where the string breaks
It will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down
None of these

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Physics
A transformer

Converts AC voltage to D.C. voltage
Is used to decrease or increase AC voltage
Converts electrical energy into mechanical energy
Converts DC to AC

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