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WorksheetsLight reflection and refraction
Total questions: 10
Worksheet time: 9mins
When a ray of light entering from air is incident on the surface of a glass slab at an angle of 90°, the measure of angle of refraction=
(a)
The type of mirror used in reflector in automobile lights is
Plane mirror
Concave mirror
Convex mirror
None of the above
A mirror having focal length –15 cm is _________________
Plane mirror
Concave mirror
Convex mirror
None of these
Assertion: For observing the traffic at the hairpin bend in the mountains a plane mirror is preferred over convex or concave mirror.
Reason: A convex mirror has a much larger field view than a plane mirror or a concave mirror.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
Assertion is true but Reason is false.
Assertion is false but Reason is true.
Which of the following characteristics are correct for the image formed in a plane mirror?
I. Upright
II. Inverted
III. Real
IV. Same size as the object
V. Virtual
I, II, III
I, III, IV
I, IV, V
III, IV, V
A ray of light travels from air into a glass block.
Which diagram correctly shows the path of the ray through the glass block?
A
B
C
D
Why does the straw appear to be bent?
light is reflected
light is absorbed
light is turned
light is refracted
In the illustration, the light ray striking the object is-
