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Assertion (A): An iron rod turns red at ...

Assertion (A): An iron rod turns red at first,while heating .Reason R: Low energy gives higher wavelength.

A

‘A”and ‘R’ are correct and ‘R’ supports ‘A’

B

A is correct but ‘R’ is incorrect

C

R is incorrect but A is correct

D

Both ‘A’ and ‘R’ are incorrect

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