Lakhmir Singh & Manjit Kaur - Physics

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Q. 175.0( 3 Votes )

The focal length A. 10 cm

B. 19 cm

C. 20 cm

D. 30cm

Class 10th Lakhmir Singh & Manjit Kaur - Physics 4. Reflection of light

Answer :

F =R/2 = 38/2 = 19 cm

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