MDCAT Physics Chapter 7 Light Online Test With Answers

MDCAT Physics Chapter 7 Light Online Test

Sr. # Questions Answers Choice
1 The advantage/advantages of fiber optics than radio wave carriers Much wider band width Capability Immunity All of these
2 In photo phone modulated beam of reflected sun light focused on a detector several hundred meters away with the divice Germanium Selinium Silicon None of these
3 Graham Bell photo phone used a modulated beam of Reflected sun light Refracted sun light Diffracted sun light None of these
4 Photo phone was invented by Edison Graham Bell Bardeen None of these
5 The resolution of microscope depends on objective's Focal length Material Diameter None of these
6 A wider objective and the use of blue light of short wavelength produces Interference Diffraction Less diffraction Polarization
7 An image formed by a concave lens is always Virtual Real Inverted None of these
8 A double convex lens acts as a diverging lens when the object is Between f and 2f At the foucs Inside the focus All of these
9 The minimum distance between an object and its image in a convex lens is 2 f 2.5 f 3 f 3.5 f
10 The speed of light in other material is always Greater than c Less than c Equal to c None of these
11 The time taken by light for its passage from M to m and back is 2c/d d/2c 2d/c d<sup>2</sup>/2c
12 The time taken by the mirror M to rotate through an angle 2π/8 is 1/8 f 1/16 f 1/4 f 1/2 f
13 Angle subtended by any side of the eight-sided mirror at the center is π/8 π/4 2π/8 2π/4
14 At certain speed, the time taken by light in moving from M to m and back to M is equal to the time taken by Face 4 &nbsp;to 1 Fact 6 to 1 Face 3 to 1 Face 2 to 1
15 Who attempted to measure the speed of light Gallileo Michelson Newton None of these
16 The refracting edge of the prism must be parallel to the axis of rotation of the telescope, so that the turn table is leveled using Screws of the spectrometer Leveling screws Turn table screw None of these
17 A telescope is rotatable about the same vertical axis as the turntable, with a scale which is Main scale Vernier scale Half degree scale None of these
18 A circular scale is attached and graduated in One degree 2 degrees Half degree None of these
19 Turn table is the plateform over which we place Diffraction grating Prism Glass slab a and b
20 The function of colimator is To converge the incoming rays To make the parallel rays from source In which the source of light is kept None of these
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