A. f2 + f1
B. f2 – f1
C. f1f2/f2+f1
D. f1f2/f1-f2
A. chromatic aberration
B. spherical aberration
C. both spherical and chromatic
D. distortion
A. 15 cm
B. 25 cm
C. 30 cm
D. 40 cm
The least distance of distinct vision for a normal eye is_______________? Read More »
Optical Instruments, Physics Mcqs A. increase with increase in focal length
B. increase with decrease in focal length
C. no effect with decrease or increase with focal length
D. list distance of distinct vision
Magnifying power of simple microscope______________? Read More »
Optical Instruments, Physics Mcqs A. real and erect
B. virtual and erect
C. real and inverted
D. virtual
A. real
B. virtual
C. positive
D. negative
The power of a concave lens is_______________? Read More »
Optical Instruments, Physics Mcqs A. meter
B. watt
C. diopter
D. horsepower
Unit of power of a lens is________________? Read More »
Optical Instruments, Physics Mcqs A. focal length
B. principal axis
C. aperture
D. radius of curvature
The diameter of a lens is called________________? Read More »
Optical Instruments, Physics Mcqs A. diverging (or concave) lens
B. converging (or convex) lens
C. plano concave lens
D. plano convex lens
A lens which converges a beam of parallel rays to a point is called______________? Read More »
Optical Instruments, Physics Mcqs