Top 1000+ Solved Physics MCQ Questions Answer

From 781 to 795 of 1211

Q. A moving car possesses -

a. sound energy

b. mechanical energy

c. heat energy

d. (d)chemical energy

  • b. mechanical energy

Q. The cooling by a desert Cooler is based on:

a. Hot air replacement

b. Air dehydration

c. Evaporative Cooling

d. Air Rehydration

  • c. Evaporative Cooling

Q. Distant objects are visible as a little out of focus in this condition –

a. presbiopia

b. hypermetropia

c. astigmatism

d. myopia

  • d. myopia

Q. That an Iron ship floats in water but an Iron ball sinks, is an example of -

a. Newton's second law

b. Pascal's law

c. Archimedes Principle

d. Dalton's law

  • c. Archimedes Principle

Q. A temperature rise in environment that disturbs life is called -

a. water pollution

b. nuclear pollution

c. thermal pollution

d. traffic pollution

  • c. thermal pollution

Q. What is the approximate height of a geostationary satellite from the surface of the earth?

a. 981 km

b. 15000 km

c. 35000 km

d. 55000 km

  • c. 35000 km

Q. What is the SI unit of frequency?

a. Newton

b. Watt

c. Farad

d. Hertz

  • d. Hertz

Q. The metallurgical process in which a metal is obtained in a fused state is called -

a. roasting

b. calcinations

c. smelting

d. froth floatation

  • c. smelting

Q. Which one of the following elements shows variable equivalent mass?

a. Zinc

b. Silver

c. Calcium

d. Iron

  • d. Iron

Q. Weight of a person at a height of 2R from the centre of the earth, where R is the radius of the earth-

a. remains same

b. becomes half

c. becomes twice

d. becomes one-fourth

  • d. becomes one-fourth

Q. Alpha particle is the nucleus of an atom of –

a. Lithium

b. Hydrogen

c. Helium

d. Oxygen

  • c. Helium

Q. Which of the following supports particle nature of photons?

a. Diffraction

b. Polarization

c. Photoelectric effect

d. Interference

  • c. Photoelectric effect

Q. 'Farad' is the unit of :

a. Capacitance

b. Inductance

c. Resistance

d. Conductance

  • a. Capacitance

Q. Man perceives sound vibrations in the frequency ranges of –

a. 0 – 5 Hz

b. 6 - 10 Hz

c. 11 - 15 Hz

d. 20 - 20000 Hz

  • d. 20 - 20000 Hz
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