| 1. | If the magnification produced by a lens has a negative value, the image will be ? | |
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virtual and erect
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real and inverted
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real and erect
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virtual and inverted
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Report Question| 2. | Consider the following statements and choose the correct one ? | |
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In the plane mirror, the right side of our body becomes left side in the image, whereas the left side of our body becomes right side in the image.
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The nature of image formed by a plane mirror is virtual and erect and the size of image formed by a plane mirror is equal to that of the object.
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The phenomenon of lateral inversion is due to the reflection of light.
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All the above.
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| 3. | What will be the angle of refraction for a ray of light fall perpendicular to the interface of two mediums ? | |
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45 degree
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180 degree
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90 degree
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0 degree
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| 4. | A spherical mirror and a spherical lens each have a focal length of -10 cm. The mirror and the lens are likely to be ? | |
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the mirror is concave and the lens is convex
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both convex
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both concave
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the mirror is convex and the lens is concave
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| 5. | A beam of light is incident through the holes on side A and emerges out of the hole on the other face of the box as shown in the figure. Which of the following could be inside the box ? | |
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Prism
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Convex lens
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Rectangular glass slab
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Concave lens
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| 6. | If the power of a lens is – 2 D, what is its focal length ? | |
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+100 cm
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-100 cm
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-50 cm
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+50 cm
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| 7. | Mirror used for focusing light is ? | |
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plane
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Convex
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Concave
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none
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| 8. | Consider the following statements and choose the correct one ? | |
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In the plane mirror, the right side of our body becomes left side in the image, whereas the left side of our body becomes right side in the image.
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The nature of image formed by a plane mirror is virtual and erect and the size of image formed by a plane mirror is equal to that of the object.
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The phenomenon of lateral inversion is due to the reflection of light.
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All the above.
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| 9. | Large number of thin stripes of black paint are made on the surface of a convex lens of focal length 20 cm to catch the image of a white horse. The image will be ? | |
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a zebra of less brightness
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a horse of less brightness
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a horse of black stripes
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a zebra of black stripes
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| 10. | Large number of thin stripes of black paint are made on the surface of a convex lens of focal length 20 cm to catch the image of a white horse. The image will be ? | |
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a zebra of less brightness
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a horse of less brightness
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a horse of black stripes
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a zebra of black stripes
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