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प्रश्न
Amount of light entering into the eye is controlled by ______.
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उत्तर
Amount of light entering into the eye is controlled by Iris.
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संबंधित प्रश्न
Fill in the blank.
A medium which allows light to pass through it easily is called the ...................
Fill in the blank.
Light travels in a ................. path.
Select the correct alternative.
The luminous body is
Tick the correct answer.
Substance which don’t allow light to pass through them,
Match the following
| Column A | Column B |
| 1. Transparent object | i. Football |
| 2. Eclipses | ii. Glass |
| 3. Translucent object | iii. Fluorescent tube |
| 4. Luminous object | iv. Tracing paper |
| 5. Non - luminous object | v. Shadows |
Write true or false
Opaque objects do not allow light to pass through them.
Write whether of the following objects are luminous or non-luminous.
| Object | Luminous/Non-luminous |
| A book | |
| A burning candle | |
| A wax cloth | |
| A pencil | |
| A pen | |
| A light bulb | |
| A tyre | |
| A torch |
Describe the pictures.
When a beam of white light passes through a prism it gets ______.
A student observes a tree given in the following figure through a pin hole camera. Which of the diagrams given in the following figure (a) to (d), depicts the image seen by her correctly?
