The laws of reflection hold good for

The laws of reflection hold true for:

Laws of reflection hold good in case of

Newton's laws of motion do not hold good for objects

Newton's law og gravitation holds good for

(a) What is meant by 'reflection of sound'? What type of surfaces are the best for reflecting sound? (b) Name any two objects which are good reflectors of sound. (c) State the laws of reflection of sound.

A frame of reference in which Newton's law of inertia does not hold good is called______________.

What is the temperature range up to which state Newton's law of cooling holds good ?

Snell's law of refraction does not hold good when the angle of incidence on a refracting surface is

Newton's law of cooling holds good provided the temperature difference between the body and the surroundings is .