NSO Level 1- Science Olympiad (SOF) Class 7: Questions 20 - 24 of 597
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Question number: 20
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Question
If we numbering colors of rainbow from 1 to 7 in direction of top to bottom, which one of the following color comes at number 3?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Green | |
b. | Yellow | |
c. | Blue | |
d. | All of the above | |
Question number: 21
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Question
Match the following,
| List-Ⅰ (Column I) | List-Ⅱ (Column II) |
|---|---|
(A) Plane mirror | (i) Can form image of objects spread over a large area |
(B) Convex mirror | (ii) Used as a magnifying lens |
(C) Concave mirror | (iii) The image is erect and of the same size as the object. |
(D) Convex lens | (iv) Used by dentist to see enlarge image of teeth |
Choices
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Question number: 22
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Question
The images formed on the retina are:
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Cannot decide | |
b. | Virtual images | |
c. | Real images | |
d. | Either Real image or Virtual image | |
Question number: 23
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Question
If we placed an object at the centre of the curveture of the convex lens, then image is at:
Choices
| Choice (4) | Response | |
|---|---|---|
a. | With in the focal length | |
b. | At center of the curveture | |
c. | Cannot formed image | |
d. | Between focal point and centre of the curveture | |
Question number: 24
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Question
In following figure, identify the angle of incident.
Ray Diagram of Reflection
Choices
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