Practice 4

16 Animated Videos | 16 Structured Questions.

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58

Film thickness for the reflected light to be coloured yellow?

3 Min | 2MB #Advanced
59

Find fringe width for a wedge.

2 Min | 1MB #Advanced
60

Find angle for wedge of air b/w thick plates.

2 Min | 1MB #Intermediate
61

Find no. of dark bands formed if other end of wedge at some distance.

2 Min | 1MB #Advanced
62

Diff in thickness of two ends of air cavity?

1 Min | 1MB #Advanced
63

Rate of change of spacing between the plates at right end?

2 Min | 2MB #Advanced
64

Find radius of bright & dark fringes, and ring thickness as function of r.

3 Min | 9MB #Intermediate
65

Diameter of particle if diameter of 10th dark ring is given.

1 Min | 1MB #Advanced
66

Find eqn for dark & bright rings for 2 lens placed on each other in 2 ways.

2 Min | 8MB #Advanced
67

Find fringe width after reflections for concave mirrors cut and separated inside liquid.

2 Min | 1MB #Advanced
68

Positions with diff wavelength for bi-prism with fringe order positions given.

2 Min | 1MB #Intermediate
69

Fringe pattern when shifted from air to inside water?

4 Min | 3MB #Advanced
70

Number of interference fringes which will be observed on a screen.

2 Min | 2MB #Advanced
71

Position of 1st maxima for lens cut in 2 halves and placed on axis.

2 Min | 2MB #Advanced
72

Distance from CM when third intensity maximum occurs at the point.

2 Min | 1MB #Advanced
73

Fringe width for the pattern obtained under given arrangement on the screen.

2 Min | 2MB #Advanced
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