Question

Time : 1.00 Hour
Full Mark - 50
1.
PHYSICS
The unit of permittivity of free space is e, :
(a) coulomb /newton-metre (b) newton-m2 / coul?
(c) coul? / (newton-m) (d) coul? / (newton-m?)
2.
Temperature can be expressed as a derived quantity in terms of any of the following:
(a) length and mass
(b) mass and time
(c) length, mass and time
(d) in terms of none of these
3.
The correct unit of thermal conductivity is :
(a) joule m? sec! (°C)
(b) joule msec (°C)
(c) joule-sec
(d) joule metre sec" (°C)."
4.
Universal time is based on:
(a) rotation of earth on its axis
(c) vibrations of caesium atom
(b) earth's orbital motion around the earth
(d) oscillation of quartz crystal
5.
SI unit of luminous intensity is:
(a) lumen (b) candela
(C) lux
(d) watt
6.
SI unit of luminous flux is:
(a) lumen (b)(candela
(c) lux
(d) lumen/steradian
(d) candela/em?
7.
(c) candela/m?
One 'lux' is equal to:
(a) lumen/m2 (b) lumen/cm²
(d) 10' N/m
8.
A pressure of 10“ dynes/cm² is equivalent to:
(a) 10% N/m (b) 10‘N/m² (c) 10 N/m2
(c) power (d) acceleration
9.
erg mcan be the unit of the measure of:
(a) force
(b) momentum
(d) a non-dimensional constant
10.
Unit of amplification factor is :
(a) ohm (6) mho
(c) AV
(d) gm (cm/sec)
(c) gm (cm/sec)
11.
The unit of potential energy is :
(a) gm (cm/sec) (b) gm (cm/sec)?​

Answer 1

Answer:

he unit of potential energy is :

(a) gm (cm/sec) (b) gm (cm/sec)?