Wave Optics Tes...

In the following question, a statement of Assertion is given, which is followed by a corresponding statement of Reason. Mark the correct answer as:
(a) If both Assertion and Reason are true and Reason is correct explanation of Assertion.
(b) If both Assertion and Reason are true, but Reason is not correct explanation of Assertion.
(c) If Assertion is true, but Reason is false.
(d) If both Assertion and Reason are false.
Assertion: A tube-light emits white light.
Reason: Emission of light in a tube takes place at very high temperature.

For the statements of Assertion and Reason, mark the correct answer as:
(a) If both assertion and reason are true and reason is the correct explanation of assertion.
(b) If both assertion and reason are true, but reason is not the correct explanation of assertion.
(c) If assertion is true, but reason is false.
(d) If both assertion and reason are false.
Assertion: The clouds in the sky generally appear to be whitish.
Reason: Diffraction due to clouds is efficient in equal measure at all wavelengths.