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(A) A laser beam of 0.2W can drill holes...

(A) A laser beam of 0.2W can drill holes through a metal sheet whereas a 1000W torch light cannot.
(R) : The frequency of laser light in much higher than that of torch light.

A

Both .A. and .R. are true and .R. is the correct explanation of .A.

B

Both .A. and .R. are true and .R. is not the correct explanation of .A.

C

A. is true and .R. is false

D

A. is false and .R. is false

Text Solution

Verified by Experts

The correct Answer is:
C
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