Top 1000+ Solved Physics MCQ Questions Answer

From 526 to 540 of 1211

Q. For which one of the following, "Diodes' are generally used for?

a. Rectification

b. Amplification

c. Modulation

d. Filtration

  • a. Rectification

Q. Which of these waves can be polarized?

a. Sound waves in air

b. Longitudinal waves on a string

c. Transverse waves on a string

d. Light waves

  • d. Light waves

Q. X-rays are –

a. positively charged particles

b. negatively charged particles

c. neutral particles

d. None of these

  • c. neutral particles

Q. Which of the following is the second largest source of global energy?

a. Fossil fuel

b. Nuclear Energy

c. Renewable Energy

d. None of these

  • c. Renewable Energy

Q. Which of the following methods will separate water from muddy water?

a. Separating funnel

b. Distillation

c. Crystallization

d. Filtration

  • d. Filtration

Q. An a-particle is           .

a. A hydrogen molecule

b. A helium nucleus

c. An atom of hydrogen

d. A proton

  • b. A helium nucleus

Q. What type of lens is used to correct vision of a person suffering from Myopia?

a. Convex lens

b. Concave lens

c. Crossed lens

d. Cylindrical lens

  • b. Concave lens

Q. What is the name of the device used to convert alternating cur-rent into direct current?

a. Amreter

b. Galvanometer

c. Rectifier

d. Transformer

  • c. Rectifier

Q. A light year is a unit of:

a. Time

b. Distance

c. Intencity of Light

d. Frequency

  • b. Distance

Q. The SI unit of luminous emittance is -

a. Lux

b. Candela

c. Lumen

d. Lumen second

  • a. Lux

Q. Total internal reflection can not take place when light goes from –

a. glass to water

b. water to glass

c. water to air

d. glass to air

  • b. water to glass

Q. Hertz is a unit for measuring –

a. Intensity of waves

b. Frequency of waves

c. Wavelength

d. Clarity of waves

  • b. Frequency of waves
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