Answer to Question #25920 in Electric Circuits for somnath chatterjee
Question #25920
1) the current in a 100w, 220v electric light is ?
2) in a red light a lens has a focal length 25cm. in blue light the probable focal length will be----
a) 25.5 b) 24.5 c) 15 d) 35
2) in a red light a lens has a focal length 25cm. in blue light the probable focal length will be----
a) 25.5 b) 24.5 c) 15 d) 35
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