ScienceGeneral Science Teaching Exams State Level

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Question1) Infrared is used in night vision equipment when there is insufficient visible light to see.

Option- ['True', 'False']

Answer: True

Explaination:

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Question2) Infrared radiation has the longest wavelength.

Option- ['True', 'False']

Answer: True

Explaination:

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Question3) Visible light has a higher frequency than radio waves.

Option- ['True', 'False']

Answer: True

Explaination:

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Question4) Gamma rays can cause Gene mutation.

Option- ['True', 'False']

Answer: True

Explaination:

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Question5) green house effect is the heating up of the earth's atmosphere which is due to infrared rays.

Option- ['True', 'False']

Answer: True

Explaination:

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Question6) Transition metal ions have an incomplete set of 3d electrons. Changes in the energy of these electrons correspond to the energy of visible light.

Option- ['True', 'False']

Answer: True

Explaination:

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Question7) The correct relationship among these wavelengths is LUV < lVIS < lIR.

Option- ['True', 'False']

Answer: True

Explaination:

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Question8) The device used for measuring the wavelength of X-rays is Bragg Spectrometer.

Option- ['True', 'False']

Answer: True

Explaination:

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Question9) Radar, which stands for radio detection and ranging, is a system that uses reflected radio waves to detect objects and measure their distance and speed.

Option- ['True', 'False']