If the image distance of a convex lens of focal length 25 cm is 75 cm then the object distance is ……………………
A) -37.5 cm
B) 37.5 cm
C) 50 cm
D) -50 cm
Answered Feb 05, 2023
Correct option is A) -37.5 cm
C) same side of the lens
Correct option is B) double
Correct option is C) 20 cm
Correct option is B) x/2
Correct option is C) 30 cm
Correct option is A) 20 cm
Correct option is C) 40 cm
1. A lens is said to be convex if it is thicker in the middle and narrowing towards the periphery. According to Cartesian sign convention, its focal length is positive. 2....
U = -12 f = -10 1/v - 1/u = 1/f 1/v + 1/12 = 1/10 1/v = 1/60 \(-\frac{1}{v^2} \)dv or \(\frac{1}{u^2} \)du du = \(\frac{v^2}{u^2} \)du \( \frac{v}{u} \)= same path △u1 = △u2 = 1mm △u1 = △v2 △v2 = vf - vi x2 = △v2 + 1mm x2...
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