Pick out the statement which is not true

IR radiations are used for long distance photography

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IR radiations arise due to inner electron transitions in atoms

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IR radiations are detected by using a bolometer

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Sun is the natural source of IR radiation

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Solution

The correct option is B
IR radiations arise due to inner electron transitions in atoms

B

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Similar questions

Q. The gases which are absorbers of

I R -

radiation:

Of the following radiation with

(i)Maximum wavelength out of UV, Radiowaves, x-rays, IR

(ii) Lowest frequency out of IR,wavelength out of UV, Radiowaves, x-rays, IR

(ii) Lowest frequency out of IR, ϒ-rays, cosmic rays and microwaves

The electromagnetic radiations are:

The correct order of increasing energy from lowest to highest is:

Q. Assertion(A): Atmosphere plays an important role in maintaining the heat balance on earth.
Reason(R): Atmosphere absorbs a portion of electromagnetic radiation coming from the sun and transmits near UV, visible and near IR radiation.

Q. Which of the following radiations are not emitted by electron transitions in atoms ?

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Pick out the statement which is not true

The correct option is B IR radiations arise due to inner electron transitions in atoms B

The correct option is B
IR radiations arise due to inner electron transitions in atoms

B