Light [CBSE (Central Board of Secondary Education) Class-8 Science]: Questions 1 - 6 of 33
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Question 1
Question MCQ▾
What makes thing visible:
Choices
Choice (4) | Response | |
---|---|---|
a. | Only when light reflected by an object enters our eyes | |
b. | Eyes | |
c. | In presence of light | |
d. | In the dark |
Question 2
Question MCQ▾
Reflection of light from a smooth surface is called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Specular reflection | |
b. | Regular reflection | |
c. | Diffuse reflection | |
d. | Both a. and b. are correct |
Question 3
Question MCQ▾
A ray which strikes the reflecting surface is called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Reflected ray | |
b. | Incident ray | |
c. | Normal | |
d. | Question does not provide sufficient data or is vague |
Question 4
Question MCQ▾
Periscope is defined as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Right-left reversal of image by a plane mirror | |
b. | An instrument used to see above obstacles | |
c. | An arrangement in which beautiful patterns are formed | |
d. | Question does not provide sufficient data or is vague |
Question 5
Question MCQ▾
A reflected ray is:
Choices
Choice (4) | Response | |
---|---|---|
a. | Perpendicular line | |
b. | Ray strikes the reflecting surface | |
c. | A light ray which bounces back into same medium after reflection from reflected surface. | |
d. | None of the above |
Question 6
Question MCQ▾
Laws of reflection are:
Choices
Choice (4) | Response | |
---|---|---|
a. | The incident ray, the reflected ray and the normal at the point of incidence all lie in the same plane | |
b. | The angle of incidence (i) is equal to the angle of reflection (r) | |
c. | Both a. and b. are correct | |
d. | None of the above |