NEET Physics: Questions 104 - 108 of 2099
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Question number: 104
Question number: 105
A body having non-zero acceleration can have a constant velocity.
Acceleration is the rate of change of velocity.
|a.||Ꭺ is false but Ꭱ is true|
|b.||Both Ꭺ and Ꭱ are false|
|c.||Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ|
|d.||Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ|
Question number: 106
Question number: 107
The motion of a body is given by the equation dv (t) /dt = 6.0 - 3v (t), where v (t) is speed in m/s and t in sec.
If body was at rest at t = 0
The speed varies with the time as v (t) = 2 (1 – e -5t) m/s
The magnitude of the initial acceleration is 6.0 m/s2
The speed is 0.1 m/s when the acceleration is half the initial value
The terminal speed is 4 m/s
Three of the fundamental constants of physics are the universal gravitational constant, G = 6.7 x 10 -11 m 3 kg -1 s -2, the speed of light, c = 3.0 x 10 8 m/s, and Planck’s constant,
h = 6.6 x 10 -34 kg m 2 s -1.
Question number: 108 (1 of 2 Based on Passage) Show Passage
The energy of a photon is given by E = If λ = 4 x 10 - 7 m, the energy of photon is
The universal gravitational constant, G = 6.7 x 10 -11 m 3 kg -1 s -2, the speed of light, c = 3.0 x 10 8 m/s, and Planck’s constant, h = 6.6 x 10 -34 kg m 2 s -1.