Light, Shadows and Reflections Class 6 Quiz Question with Answer
Light, Shadows and Reflections Class 6 Quiz Question with Answer. CBSE Class 6 Science Lesson 11 Mock Test.
(1) Which of the following statement are incorrect?
(a) moon is non luminous body
(b) sun is luminous body
(c) Shaw is three dimensional
(d) image formed by a plane mirror
Answer: – d) image formed by a plane mirror
Explanation: – Image from by a plane mirror, this statement is not correct because plane mirror does not form any image.
(2) Shadow is _______dimensional.
(a) 2
(b) 4
(c) 3
(d) 6
Answer: – c) 3
Explanation: – shadow is three dimensional.
(3) The substances are clearly seen through the object is known as ______.
(a) Transparent
(b) translucent
(c) both a and b
(d) none of these
Answer: – a) transparent
Explanation: – through the transparent objects substances are clearly seen. E.g. glass
Though the Translucent objects substances are seen but not clearly. E.g. oily paper
(4) Which of the following object is transparent?
(a) wall
(b) thin oily paper
(c) door
(d) none of the above
Answer: – d) none of the above
Explanation: – transparent subjects are those through which the objects are clearly seen, but in the above option no object is transparent.
(5) In which of the following path the beam of light can travel?
(a) zigzag
(b) Straight
(c) horizontal
(d) none of these
Answer: – b) straight
Explanation: – light cannot travel in zigzag or horizontal line; it can travel only in a straight line.
(6) Which of the following is the artificial source of light?
(a) star
(b) sun
(c) electric bulb
(d) all of these
Answer: – d) all of these
Explanation: – electric bulb is an artificial source of light while other is natural sources of light.
(7) Which of the following is an Example of natural source of light?
(a) sun
(b) star
(c) moon
(d) all of the above
Answer: – d) all of the above
Explanation: – all of these are examples of natural source of light.
(8) Which of the following is luminous body?
(a) moon
(b) sun
(c) planet
(d) all of these
Answer: – b) sun
Explanation: – sun is luminous body while moon and planet are non -luminous.
(9) Which of the following object are translucent?
(a) ground glass
(b) ice
(c) both a and b
(d) none of these
Answer: – c) both a and b
Explanation: – both ground glass and ice are translucent through which we can see objects but not clearly.
(10) Which of the following pair is incorrect?
(a) sun – luminous body
(b) moon – non -luminous body
(c) Translucent – object through which one can see very clearly
(d) Electric bulb – Artificial source of light.
Answer :- c) translucent- object through which one can see very clearly
Explanation: – all the pair are correct except translucent through which we can the suntances but not clearly.
(11) Which device is used to image the sun?
(a) Glass slab
(b) pinhole camera
(c) both a and b
(d) none of these
Answer: – b) pinhole camera
Explanation: – sun can be imaged by using pinhole camera.
(12) The object which allows only some part of light to pass through it is known as _____
(a) opaque
(b) Transparent
(c) Translucent
(d) none of these
Answer: – c) Translucent
Explanation: – translucent objects allow only some part of the light to allow through it,
Transparent objects allow all the light to pass through it.
Opaque objects does not allow light to pass through it.
(13) Which of the following object does not allow the light to pass though it?
(a) Translucent
(b) Transparent
(c) opaque
(d) all of there
Answer: – c) opaque
Explanation: – opaque objects do not allow the light to pass through it.
Translucent objects allow only some part of the light to allow through it,
Transparent objects allow all the light to pass through it.
(14) Which of the following statement is correct?
(a) pinhole camera is used to images the sun
(b) mirror reflection give us clear images
(c) Shadow are formed when a opaque object comes in the path of light
(d) All of these statements are correct.
Answer: – d) all of these
All of the given statements are correct.
(15) When a ray of light falls on a smooth and polished surface, whole light is returned back in the same medium, what does the effect called?
(a) Reflection
(b) Refraction
(c) Dispersion
(d) all of these
Answer: – a) Reflection
Explanation: – Light is returned back in the same medium it is called reflection.
The scattering of the light is known as dispersion.
The change of the medium of light is called as refraction.