Avalanche breakdown is due to
Options
(a) Collision of minority charge carrier (b) Increase in depletion layer thickness (c) Decrease in depletion layer thickness (d) none of these
Correct Answer:
Collision of minority […]
If a body is rolling on the surface, its total energy will be
Options
(a)(1/2) mv² – (Gm₁m₂/R) (b) (1/2) mv² + (1/2) Iω² (c) (1/2) mv² – (1/2) mR²ω² (d) None
Correct […]
Two springs with spring constants K₁=1500 N/m and K₂=3000 N/m are stretched by the same force. The ratio of potential energy stored in springs will be
Options
(a) 1:2 (b) 2:1 (c) 4:1 […]
Which of the following will be σ if Y=2.4 η?
Options
(a) (-1) (b) 0.2 (c) 0.1 (d) (-0.25)
Correct Answer:
0.2
Explanation:
No explanation available. Be the first to write the explanation […]
A motor-cyclist drives a motor cycle in a vertical circle. His minimum velocity at the highest point of the circle will be
Options
(a) √2Rg (b) √3Rg (c) √Rg (d) 2Rg
Correct Answer:
√Rg
Out of the following which pair of quantities does not have same dimensions?
Options
(a) Planck’s constant and angular momentum (b) Work and energy (c) Pressure and Young’s modulus (d) Torque and moment […]
Find out the angle of projection, if range is 4 times of maximum height
Options
(a) 60⁰ (b) 45⁰ (c) 30⁰ (d) 75⁰
Correct Answer:
45⁰
Explanation:
R=4H 2 u² sin θ cos θ/g […]
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