set 15 MCQ Questions & Answers Detailed Explanation

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The following question based on light, heat, thermodynamics, wave motion, sound, optics & oscillations topic of general science mcq

Questions : Consider the following parts of spectra
  1. Visible
  2. Infrared
  3. Ultraviolet
  4. Microwave
Which one of the following is the correct sequence in which their wavelengths increase ?

(a) 4 – 1 – 2 – 3

(b) 4 – 3 – 1 – 2

(c) 3 – 2 – 1 – 4

(d) 3 – 1 – 2 – 4

The correct answers to the above question in:

Answer: (d)

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Read more light heat thermodynamics wave sound optics oscillation Based General Science Questions and Answers

Question : 1

When beams of red, blue and green lights fall on the same spot, the colour of the light becomes

a) Yellow

b) Red

c) Violet

d) White

Answer: (d)

Question : 2

Which of the following properties are most desirable for a cooking pot ?

a) Low specific heat capacity and high conductivity

b) High specific heat capacity and low conductivity

c) High specific heat capacity and high conductivity

d) Low specific heat capacity and low conductivity

Answer: (a)

Question : 3

Which of the following statements is not true?

a) Air-conditioner and Air-cooler both maintain humidity

b) Air-conditioner maintains humidity but Air-cooler does not maintain humidity

c) Air-conditioner and Air-cooler both maintain temperature

d) Both control motion of air

Answer: (a)

Question : 4

The walls of the ball, built for music concerts should

a) Transmit sound

b) Reflect sound

c) Amplify sound

d) Absorb sound

Answer: (d)

Question : 5

When a piece of ice floating in a glass of water melts, the level of water will

a) Rise

b) Remain same

c) Fall

d) Fall or rise depends on the temperature of water

Answer: (b)

Question : 6

The diamond appears lustrous because of

a) Total internal reflection

b) Refraction

c) Reflection

d) Scattering

Answer: (a)

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