Reflection from a smooth surface like that of a mirror is called ___________ reflection.
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Which rays cause skin damage?
Instrument used for measuring specific gravity is called _____.
If a body slides over a surface, the force resisting the motion between them is called ______.
The unit of which physical quantity is not pascal?
1 kW = ?
Instrument for measuring blueness of the sky or ocean is called ___________.
During which of the following operating conditions of an automobile, carbon monoxide content in exhaust gas is maximum?