NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1035 - 1040 of 1484

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Question 1035

Question

MCQ▾

The stars appear to twinkle, because of:

Choices

Choice (4)Response

a.

Atmospheric refraction of star՚s light

b.

Fluctuation of intensity of light

c.

Their motion in sky

d.

Reflection of star՚s light from our eyes

Question 1036

Question

MCQ▾

What are the characteristic of image, if the object is placed on the focal point of a convex mirror?

Choices

Choice (4)Response

a.

Diminished, inverted and virtual

b.

Enlarged, erect and virtual

c.

Diminished, erect and virtual

d.

Enlarger, inverted and real

Question 1037

Question

MCQ▾

The distance between object and image formed by a convex lens, if the object is placed at the centre of curvature, is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1038

Question

MCQ▾

Observe the following figure.

Image Formed by Plane Mirror

Which of the following shows the image of object formed by plane mirror?

Choices

Choice (4)Response

a.

S

b.

P

c.

R

d.

Q

Question 1039

Question

MCQ▾

A converging lens has a focal length of and object is far from the lens. Then the image is:

Choices

Choice (4)Response

a.

Inverted, enlarged and real

b.

Erect, enlarged and virtual

c.

Erect, diminished and real

d.

Erect, enlarged and real

Question 1040

Question

MCQ▾

The radius of the circle formed with the curved part of the lens is called:

Choices

Choice (4)Response

a.

Focal length

b.

Object distance

c.

Radius of curvature

d.

Radius of lens

Developed by: