| Tarun carried out an experiment to show that plants respond to light. The diagram on the right shows how the plant looked like after a week. |
|
| Which one of the following set-ups did he use for his experiment? |
A)
B)
C)
D)
Correct Answer: B
Solution :
After a week, plant is seen to be tilted towards right side. This is because plants tilt towards the sunlight. Wooden box is opaque and light is coming from the right side through the hole in the wooden box (set-up B). It does not happen in case of glass box as glass being transparent allows light to pass through it from all the directions.
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