NEET Physics: Questions 1666  1669 of 2142
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Passage
The differential equation of a particle undergoing SHM is given by .
The particle starts from the extreme position.
Question number: 1666 (1 of 2 Based on Passage) Show Passage
» Oscillations and Waves » Simple Harmonic Motion » Phase
Question
The ratio of the maximum acceleration to the maximum velocity of the particle is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 1667 (2 of 2 Based on Passage) Show Passage
» Oscillations and Waves » Simple Harmonic Motion » Phase
Question
The equation of motion may be given by:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Question does not provide sufficient data or is vague 

Question number: 1668
» Electronic Devices » Semiconductor Diode
Question
Pure silicon has equal electron and holes concentration of 1.5 × 10 ^{16} m ^{3}. Doping by indium increases holes concentration to 4.5 × 10 ^{22} m ^{3}. The electron concentration in the doped silicon is,
Choices
Choice (4)  Response  

a.  3 × 10 ^{9} m ^{3} 

b.  6 × 10 ^{9} m ^{3} 

c.  4 × 10 ^{9} m ^{3} 

d.  5 × 10 ^{9} m ^{3} 

Question number: 1669
» Oscillations and Waves » Free Forced and Damped Oscillations
Question
A simple pendulum of length L and mass (bob) M is oscillating in a plane about a vertical line between angular limits – ϕ and + ϕ. For an angular displacement θ ( θ < ϕ), the tension in the string and the velocity of the bob are T and v respectively. The following relations hold good under the above conditions.
(1)
(2)
(3) The magnitude of the tangential acceleration of the bob
(4)
Select the correct answers and mark it according to the following codes:
Choices
Choice (4)  Response  

a.  2 and 4 are correct 

b.  1, 2 and 3 are correct 

c.  1 and 2 are correct 

d.  1 and 3 are correct 
