Physics-Light [NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension]: Questions 1 - 7 of 31

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Question 1

Light
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Question

MCQ▾

An astronaut in a spaceship sees the outer space as

Choices

Choice (4)Response
a.Blue
b.White
c.Black
d.Red

Question 2

Light
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Question

MCQ▾

A point object is placed at a distance of 30 cm from a convex mirror of focal length of 30 cm. The image will form at

Choices

Choice (4)Response
a.15 cm behind the mirror
b.focus
c.infinity
d.pole

Question 3

Light
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Question

MCQ▾

Which of the following is the example of ideal black body?

Choices

Choice (4)Response
a.A pin hole box
b.Kajal
c.Blackboard
d.Question does not provide sufficient data or is vague

Question 4

Light
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Question

MCQ▾

When seen in green light, the saffron and green portions of our national flag will appear as

Choices

Choice (4)Response
a.green
b.black and green respectively
c.black
d.green and yellow respectively

Question 5

Light
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Question

MCQ▾

Your image in a bathroom mirror results from

Choices

Choice (4)Response
a.diffuse reflection
b.refraction
c.specular reflection
d.specular

Question 6

Light
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Question

MCQ▾

The wavelength the radiation emitted by a body depends upon

Choices

Choice (4)Response
a.the temperature of the surface
b.the nature of the surface
c.the area of the surface
d.All of the above

Question 7

Light
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Question

MCQ▾

In the figure, an air lens is cut in a cylinder of glass of refractive index 1.5. The nature of the lens is

An air lens cut in cylinder of glass

An Air Lens Cut in Cylinder of Glass

Loading image

Choices

Choice (4)Response
a.converging
b.diverging
c.neither diverging nor converging
d.None of the above