Refractive Index of a Glass Slab using a Travelling Microscope NEET Questions

Physics - Experimental Skills

Refractive Index of a Glass Slab using a Travelling Microscope MCQ Questions


7.
When we look at an object through a glass slab from above, the object appears to be:
A.
At same depth
B.
Farther
C.
Closer (shallower) than its actual position (apparent depth < real depth)
D.
Disappears
😑 View Answer Rough Work Error
ANSWER :
C. Closer (shallower) than its actual position (apparent depth < real depth)
8.
The relationship between real depth and apparent depth for a denser medium viewed from a less dense medium is:
A.
n = apparent / real
B.
n = real - apparent
C.
n = real depth / apparent depth
D.
n = real × apparent
😑 View Answer Rough Work Error
ANSWER :
C. n = real depth / apparent depth
9.
If a glass slab has thickness 6 cm and apparent thickness 4 cm, the refractive index is:
A.
n = 6/4 = 1.5
B.
n = 6 + 4 = 10
C.
n = 4/6 = 0.667
D.
n = 6 - 4 = 2
😑 View Answer Rough Work Error
ANSWER :
A. n = 6/4 = 1.5
10.
If a glass slab has real thickness 9 cm and apparent thickness 6 cm:
A.
n = 9 - 6 = 3
B.
n = 9 × 6 = 54
C.
n = 9/6 = 1.5
D.
n = 6/9 = 0.667
😑 View Answer Rough Work Error
ANSWER :
C. n = 9/6 = 1.5
11.
If apparent shift (real depth - apparent depth) = 2 cm and real depth = 6 cm, n is:
A.
n = 4/6 = 0.67
B.
n = 2/6 = 0.33
C.
n = 2
D.
n = 6/(6 - 2) = 6/4 = 1.5
😑 View Answer Rough Work Error
ANSWER :
D. n = 6/(6 - 2) = 6/4 = 1.5
12.
The shift formula (apparent shift = real depth - apparent depth) gives:
A.
Shift = t × (n - 1)
B.
Shift = t/n
C.
Shift = t × n
D.
Shift = t × (1 - 1/n) for slab of thickness t and refractive index n
😑 View Answer Rough Work Error
ANSWER :
D. Shift = t × (1 - 1/n) for slab of thickness t and refractive index n