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Class 9 Exam  >  Class 9 Tests  >  Test: Volume Of A Cylinder - Class 9 MCQ

Test: Volume Of A Cylinder - Class 9 MCQ


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20 Questions MCQ Test - Test: Volume Of A Cylinder

Test: Volume Of A Cylinder for Class 9 2024 is part of Class 9 preparation. The Test: Volume Of A Cylinder questions and answers have been prepared according to the Class 9 exam syllabus.The Test: Volume Of A Cylinder MCQs are made for Class 9 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Volume Of A Cylinder below.
Solutions of Test: Volume Of A Cylinder questions in English are available as part of our course for Class 9 & Test: Volume Of A Cylinder solutions in Hindi for Class 9 course. Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free. Attempt Test: Volume Of A Cylinder | 20 questions in 20 minutes | Mock test for Class 9 preparation | Free important questions MCQ to study for Class 9 Exam | Download free PDF with solutions
Test: Volume Of A Cylinder - Question 1
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A ray of light passing through the centre of curvature of a spherical mirror, after reflection passes through

Detailed Solution for Test: Volume Of A Cylinder - Question 1

A ray of light passing through the centre of curvature of a concave mirror retraces its path (gets reflected along the same path), because as the ray of light passes through centre of curvature of a concave mirror it strikes themirror along the normal i.e. it incidences on to the mirror at 90 degree.

Test: Volume Of A Cylinder - Question 2
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A magnifying glass is a

Detailed Solution for Test: Volume Of A Cylinder - Question 2
A magnifying glass (called a hand lens in laboratory contexts) is a convex lens that is used to produce a magnified image of an object. The lens is usually mounted in a frame with a handle (see image). A magnifying glass can be used to focus light, such as to concentrate the sun's radiation to create a hot spot at the focus for fire starting.
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Test: Volume Of A Cylinder - Question 3
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When a mirror is rotated through an angle θ, the reflected ray from it turns through an angle of

Test: Volume Of A Cylinder - Question 4
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A ray of light incident on the optical centre of a spherical lens, after refraction passes through:
Detailed Solution for Test: Volume Of A Cylinder - Question 4
One ray of light becomes parallel to the principal axis of the lens and thus, passes through another focus after refraction through the lens. Another ray of light passes through the optical centre of the lens and goes straight. Therefore, the image formed is: At infinity, Real and inverted, highly enlarged.
Test: Volume Of A Cylinder - Question 5
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Whenever light goes from one medium to another, the characteristic that does not change is:
Test: Volume Of A Cylinder - Question 6
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Two right circular cones of equal curved surface areas have slant heights in the ratio of 3 : 5. Find the ratio of their radii?
Test: Volume Of A Cylinder - Question 7
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The concave mirrors are used in
Test: Volume Of A Cylinder - Question 8
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The mirror used as rear view mirror is
Test: Volume Of A Cylinder - Question 9
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The ratio of sine of angle of incidence to the sine of angle of refraction equals refractive index is called
Test: Volume Of A Cylinder - Question 10
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No refraction occurs when light goes from
Test: Volume Of A Cylinder - Question 11
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A ray of light passes through the focus of the mirror. After reflection, it
Test: Volume Of A Cylinder - Question 12
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A concave lens of 20 cm focal length forms an image 15 cm from the lens. What is the object distance?
Test: Volume Of A Cylinder - Question 13
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A lens which forms a virtual and enlarged image is
Test: Volume Of A Cylinder - Question 14
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Raj is standing in front of a plane mirror. The distance between Raj and his image is 100cm. If the distance between the mirror and image is x. What could be the possible value of x?
Test: Volume Of A Cylinder - Question 15
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What will happen when a ray enters from glass to air medium?
Test: Volume Of A Cylinder - Question 16
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A ray of light is reflected by the pole of a concave mirror at an angle of 80o. The angle of incidence will be
Test: Volume Of A Cylinder - Question 17
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The focal length of a plane mirror is
Test: Volume Of A Cylinder - Question 18
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The nature of the image formed by the convex mirror is always
Test: Volume Of A Cylinder - Question 19
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A person having myopic eyes uses a concave lens of focal length 50 cm. What is the power of the lens?
Test: Volume Of A Cylinder - Question 20
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is the lateral inversion of
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