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प्रश्न
Say TRUE or FALSE
We see planets because they reflect light from the sun
पर्याय
True
False
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उत्तर
We see planets because they reflect light from the sun- True
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संबंधित प्रश्न
Fill in the blank
We are able to see the objects around us due to _________, reflection.
Select the correct alternative
A man standing in front of a plane mirror finds his image to be at a distance of 6 meter from himself. The distance of man from the mirror is
An object 3 cm high produces a real image 4.5 cm high when placed at a distance of 20 cm from a concave mirror. Calculate:
- the position of image
- focal length of the concave mirror.
Give two uses of concave mirror.
State whether the following statement is true or false. If false, correct it.
The image in a plane mirror is situated in the mirror.
Differentiate between a reflection and a shadow
Match the following:
| 1. | Vegetable oil | a. | Transparent |
| 2. | Glass | b. | Translucent |
| 3. | Wood | c. | Waterproof |
| 4. | Aluminum foil | d. | Opaque |
______ through which light cannot pass.
Figure shows a ray of light as it travels from medium A to medium B. Refractive index of the medium B relative to medium A is
