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MDCAT Question Bank

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1009 available questions

Physics · Question 521

When angular speed of a body is doubled, the centripetal acceleration becomes:

  1. Doubled
  2. Thrice
  3. Four times
  4. remains the same
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Correct answer: B

Thrice

Physics · Question 522

One radian equal to _______________ degree:

  1. 30
  2. 60
  3. 90
  4. none of these
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Correct answer: D

none of these

Physics · Question 523

For the treatment of cancer, the source of gamma rays used, is:

  1. Co-60
  2. Iodine 126
  3. Na-15
  4. Pb-207
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Correct answer: A

Co-60

Physics · Question 524

Which one is stable element in the following?

  1. Lead
  2. Plutonium
  3. Radium
  4. Protactinium
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Correct answer: A

Lead

Physics · Question 525

Power transformers are designed to have maximum efficiency at

  1. Full load
  2. 0.5
  3. 0.8
  4. No load
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Correct answer: A

Full load

Physics · Question 526

Charged body attracts uncharged body by _______________ induction

  1. Electorstatic
  2. Magnetic
  3. Both A and B
  4. None of these
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Correct answer: A

Electorstatic

Physics · Question 527

Which of the following is not unit of power?

  1. horse power
  2. Kilowatt
  3. kWh
  4. Nm/s
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Correct answer: C

kWh

Physics · Question 528

Curie is the unit of:

  1. Radioactivity
  2. Temperature
  3. Half life
  4. Transition of magnetism
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Correct answer: A

Radioactivity

Physics · Question 529

Law of inertia satisfies:

  1. Condition of equilibrium
  2. Condition of variable force
  3. Condition of force in contact
  4. Condition of conservation of mass
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Correct answer: A

Condition of equilibrium

Physics · Question 530

The basic purpose of filter is to

  1. Minimize variation in ac signal
  2. Suppress harmonics in rectifed output
  3. Remove ripples form the rectified output
  4. Stabilize dc output voltage
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Correct answer: C

Remove ripples form the rectified output