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question_answer1) A plain mirror forms a virtual image. The distance between Maria and her image in a plane mirror is 10 m. How much distance should she move in order to get the distance of 5 m between herself and her image?
question_answer2) Spherical mirrors are widely used as a rear view mirror in the automobiles. Why the word AMBULANCE is differently painted in front of the hospital vans?
question_answer3) The automobiles require a heavy reflector. The headlight of the car is made up of which one of the following reflectors?
question_answer4) The focal length of a concave mirror is 5 cm. Find its curvature.
question_answer5) Small letters cannot be easily read. Which one of the following lenses is mostly used for the purpose?
question_answer6) When a convex lens is used as a magnifying glass, then the object is placed at which one of the following distances from the lens?
question_answer7) Concave mirror is used to obtain a real, inverted image of the object. Which one of the following lenses is used for real inverted as well as the virtual and erect image?
question_answer8) In the physics lab, Merriam rotates Newton's colour dice rapidly. A boy is observing the experiment. What he has observed in this experiment?
question_answer9) The formation of rainbow in the sky is due to the sun light. Which one of the following is involved for the formation of rainbow in the sky?
question_answer10) A rainbow in the sky is the spectrum of the colours How many colours are involved in the formation of a spectrum?
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