Refraction of Light at Plane Surfaces — Physics STD 10 — Question

Make the correct choice in each of the following:
(a) In what unit is the specific heat capacity expressed?

Bats use this technique to detect their prey and hunt them...... .

The critical angle for glass-air interface is : ________ .

The voltage at which power is transmitted from generating stations to the main substation is:

The physical conditions of a conductor remaining same, the current flowing through it is directly proportional to the potential difference at its ends. The above law was stated by:

Which parameter can be detected with the compass needle?

The work done in moving unit positive charge across two points in an electric circuit is a measure of

Assertion (A): In the uniform circular motion, the body is acted upon by a centripetal force, normal to displacement.
Reason (A): In the uniform circular motion, work done by the body is zero.

The size of pulleys __________ towards the load and ___________ towards rigid support.