Very Short Question Answers: Light, Shadow & Reflections Notes | Study Science Class 6 - Class 6

Q1: What are luminous objects?

Ans: Objects that give out or emit light of their own are known as luminous objects.

Q2: Butter paper is __________object. (transparent/translucent/opaque)

Ans: Translucent

Q3: Give two examples of non-luminous objects.

Ans: Chair and shoe

Q4: What type of object is said to be transparent?

Ans: If we are able to see clearly through an object, it is said to be transparent.

Q5: Give two examples of transparent objects.

Ans: Glass and water

Glass and Water are both Transparent

Q6: Give two example of luminous object.

Ans: Sun and torch bulb

Q7: What are translucent objects?

Ans: There are some objects through which we can see but not clearly. Such objects are known as translucent objects.

Q8: Wooden piece is a ___________object. (translucent/opaque)

Ans: Opaque

Q9: If we cannot see through an object at all, it is an __________object.

Ans: Opaque

Q10: Give two examples of opaque objects.

Ans: Plastic box and wooden table

Q11: When are shadows formed?

Ans: Shadows are formed when an opaque object comes in path of light

Shadow

Q12: The shadows can be seen only on a screen. (TRUE/FALSE)

Ans: True

Q13: By shadows, we may know about ___________ of object. (shape/size)

Ans: Shape

Q14: Why we should not look directly at sun?

Ans: We should not look directly at sun because that could be extremely harmful for the eyes.

Q15: Light travels along ___________path.

Ans: Straight

Q16: Mirror changes direction of light that falls on it. (TRUE/FALSE)

Ans: True

Mirror changes Direction of Light

Q17: We can see our face in mirror because mirror ___________our face.

Ans: Reflects

Q18: Images are different from shadows. (TRUE/FALSE)

Ans: True

Q19: __________object makes shadows.

Ans: Opaque

Q20: Stars and sun are __________source of light.

Ans: Natural

Q21: _________objects allows light to pass through them partially.

Ans: Translucent

Q22: Pinhole camera produces ________image.

Ans: Inverted

Q23: A sheet of polythene is ___________object. (luminous/non luminous)

Ans: Non luminous

Q24: Shadows are of two kinds. What are they?

Ans: Umbra and penumbra.

Q25: Clean water is __________. (transparent/translucent/opaque)

Ans: Transparent

Q26:  Shadows are not cast by every type of object. (TRUE/FALSE)

Ans: True

Q27: Moon is _________body. (Luminous/non-luminous)

Ans: Non luminous

Q28:  Air and water are _________. 

a) Transparent and non-luminous 

b) Opaque and non luminous. 

c) Translucent and non-luminous.

Ans: a) Transparent and non-luminous

Q29:  What type of object is sheet of cellophane? (transparent/translucent/opaque)

Ans: Transparent

Cellophane

Q30: Moon reflects ________light that falls on it.

Ans: Sun

Q31: Which of the following is not translucent?

a) Fog

b) Notebook

c) Smoke

d) Sheet of polythene

Ans: b) Notebook

Q32: ___________objects allows light to pass through them completely.

Ans: Transparent