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MDCAT Question Bank

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1009 available questions

Physics · Question 501

Formula for electric field intensity is

  1. E=F/q
  2. E=3F/2q
  3. E=F/3q
  4. Nonne of them
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Correct answer: A

E=F/q

Physics · Question 502

Electric potential difference can be defined as:

  1. ΔV=ΔU-q
  2. ΔV=ΔU/q
  3. ΔV=ΔU+q
  4. ΔV=ΔV*q
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Correct answer: B

ΔV=ΔU/q

Physics · Question 503

The unit of the kinetic energy is same as that of:

  1. Momentum
  2. Velocity
  3. Force
  4. Work
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Correct answer: D

Work

Physics · Question 504

A conductor has resistance P. If its length is stretched to twice the actual value and its radius is reduced to one third of its original value, the new resistance will be:

  1. 3R
  2. 9R
  3. 18R
  4. 27R
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Correct answer: C

18R

Physics · Question 505

The speed of sound in water is approximately:

  1. 1500 m/s
  2. 5000 m/s
  3. 330 m/s
  4. 50 m/s
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Correct answer: A

1500 m/s

Physics · Question 506

Electric potential difference can be defined as:

  1. ΔV=ΔU-q
  2. ΔV=ΔU/q
  3. ΔV=ΔU+q
  4. ΔV=ΔV*q
Show AnswerHide Answer

Correct answer: B

ΔV=ΔU/q

Physics · Question 507

The unit of the kinetic energy is same as that of:

  1. Momentum
  2. Velocity
  3. Force
  4. Work
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Correct answer: D

Work

Physics · Question 508

A conductor has resistance P. If its length is stretched to twice the actual value and its radius is reduced to one third of its original value, the new resistance will be:

  1. 3R
  2. 9R
  3. 18R
  4. 27R
Show AnswerHide Answer

Correct answer: C

18R

Physics · Question 509

The speed of sound in water is approximately:

  1. 1500 m/s
  2. 5000 m/s
  3. 330 m/s
  4. 50 m/s
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Correct answer: A

1500 m/s

Physics · Question 510

The time period of a simple pendulum with mass m, is T. When the pendulum's mass m is replaced by another ball of mass 3 times the older mass such that the length of pendulum is not changed then its new time period will be:

  1. T
  2. 3T
  3. T/3
  4. 2T
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Correct answer: A

T