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Q.4 Choose the correct option in questions: 1. A virtual image larger than the object can be produced by a(i) concave lens (ii) concave mirror (iii) convex mirror (iv) plane mirror2. David is observing his image in a plane mirror. The distance between the mirror and his imageis 4 m. If he moves 1 m towards the mirror, then the distance between David and his image willbe(i) 3 m (ii) 5 m (iii) 6 m (iv) 8 m3. The rear view mirror of a car is a plane mirror. A driver is reversing his car at a speed of 2m/s. The driver sees in his rear view mirror the image of a truck parked behind his car. The speedat which the image of the truck appears to approach the driver will be(i) 1 m/s (ii) 2 m/s (iii) 4 m/s (iv) 8 m/s |
| Answer» 1. CONCAVE mirror2.6m3.4m/s | |