If the r.m.s. velocity of a gas is v, then
Options
(a) v²T=constant (b) v²/T=constant (c) vT²=constant (d) v is independent of T.
Correct Answer:
v²/T=constant
Explanation:
No explanation available. Be the first […]
Ist law of thermodynamics is based on
Options
(a) Conservation of momentum (b) Conservation of energy (c) Conservation of mass (d) None of these
Correct Answer:
Conservation of energy
Explanation:
No explanation available. […]
In depletion layer of unbiased P-N junction
Options
(a) It is devoid of charge carriers (b) Has only electrons (c) Has only holes (d) PN junction has a weak electric field
Correct Answer: […]
The turn ratio of a transformer is 1:2. An electrolytic dc cell of emf 2 volt is connected to its primary. The output voltage is
Options
(a) 2 V (b) 0 V (c) […]
An ideal heat engine works between temperature T₁=500 K and T₂=375 K. If the engine absorbs 600J of heat from the source then the amount of heat released to the sink is
Options
If the rise in height of capillary of two tubes is 6.6 cm and 2.2 cm, then the ratio of the radius is
Options
(a) (2:1) (b) 1:√2 (c) (1:2) (d) (1:3)
Correct […]
A glass flask weighing 390 g having internal volume 500 cc just floats when half of it is filled with water. Specific gravity of the glass is
Options
(a) 2.8 (b) 1.8 (c) 1 […]
A body starts from rest with an acceleration of 2 m/s². After 5 second, the direction of acceleration reverses again for 5 second. The displacement is
Options
(a) 5 m (b) 50 m […]
40 g of Argon is heated from 40⁰C to 100⁰C (R=2 cal/mole). Heat absorbed at constant volume is
Options
(a) 100 cal (b) 80 cal (c) 180 cal (d) 120 cal
Correct Answer: […]
A body undergoes no change in volume. Poisson’s ratio is
Options
(a) 0.5 (b) 0.05 (c) 0.25 (d) 2.5
Correct Answer:
0.5
Explanation:
No explanation available. Be the first to write the explanation […]
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