Perception of Colours

Q.

If a plant with green leaves and red flowers is kept in a dark room, what will be the observed colour of leaves and flowers in red light?

1. Leaves - Dark
   Flowers - Red

2. Leaves - Dark
   Flowers - Dark

3. Leaves - Red
   Flowers - Dark

4. Leaves - Red
   Flowers - Red

Q.

A leaf will appear green in sunlight , what is its colour in cyan light.

Q.

A leaf will appear green in sunlight, what is its colour in red light?

Q.

Two teams A and B are taking part in a volleyball competition held on a ground illuminated by a sodium vapour lamp (yellow light). Team A is wearing a white jersey and blue shorts while team B is wearing a yellow jersey and black shorts.

Statement: We can distinguish between the teams based on the colour of their dress.

1. True

2. False

Q. Assertion :The colour of the green flower seen through red glass appears to be dark. Reason: Red glass transmits only the red light.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. A white screen illuminated by green and red light appears to be

1. Green
2. Red
3. Yellow
4. White

Q. During a game of tug of war, both the teams the rope as hard as they can.

1. push
2. cut
3. pull