Test Details

Light - Reflection and Refraction

Light Chapter MCQs Test for Class 9

Nov 30, 7:30 PM

30 minutes

Nov 30, 8:15 PM

20.0 marks

MCQ

20 questions

R.S. Sir

I'm graduated in Electronics and Communication Engineering and now pursuing Master Degree.

Class Details

Mock Test

Class 10

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Question Text

Question 2 :
The heat of sun focussed by a convex lens on a piece of paper is capable of

Question 3 :
A converging lens has a focal length of $50 cm$. The power of the lens is

Question 4 :
The angle of incidence for a ray of light passing through the centre of curvature of a concave mirror is :

Question 5 :
Which of the following is not a characteristic of the image formed by Convex lens ?

Question 6 :
Assertion: Magnetic field lines are continuous and closed. Reason: Magnification of a convex mirror is always positive, but that of a concave mirror may be both positive or negative.

Question 7 :
Magnification is 0.5 when the object distance is 10 cm. Find the power of the concave lens :

Question 10 :
No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be<br>

Question 11 :
Various optical instruments like telescopes, microscopes, camera uses which property of light?<br>

Question 12 :
State whether true or false : The degree of convergence of divergence of light rays achieved by a lens is expressed in terms of its power.

Question 13 :
A convex lens is used to form real image of an object on a screen. It is observed that even when the positions of the object and that screen are fixed are two position of the lens to form real images. If the heights of the images are $4\ cm$ and $9\ cm$ respectively the height of the object is

Question 14 :
When a ray of light passes through a rectangular slab, made up of some transparent material other than glass, the emergent ray is

Question 16 :
A ray of light is incident on the surface of transparent medium at an angle of $45^o$ and is refracted in the medium at an angle of $30^o$. What will be the velocity of light in the transparent medium ? <br/>

Question 18 :
A ray of light coming parallel to the principal axis after passing through a convex lens, has passed through its :

Question 19 :
Due to refraction, sunrise appears ______ sun comes to horizon and sunset appears______sun leaves horizon respectively.

Question 20 :
The mirror which always produces an erect and virtual image of a real object is:<br/>

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