Home › CBSE Class 12 (Science) › Physics › Ray Optics and Optical Instruments › A simple microscope is a converging lens of
A simple microscope is a converging lens of
ASmall focal length
BInfinite focal length
CNegative focal length
DLarge focal length
Answer & Solution
Correct answer: A. Small focal length
A short focal length gives high magnification, so a small-focal-length convex lens is used as a magnifier.
Related questions
A prismatic corner reflector turns incoming light back along its path using how many totalIn a wiper rain sensor, water drops do what to the infrared beam?Which device uses the critical angle to measure the refractive index of a substance?Which prism pair is commonly used to turn the view upright in binoculars?At the critical angle, the refracted ray travels in which direction?A swimmer looking up from below calm water sees the outside world compressed into a cone. Optical fibres carry signals over long distances by which principle?Diamond has a refractive index of about 2.42. Roughly what is its critical angle in air?