Related InterviewSolutions

• Pin-hole camera does not have A) screenB) lenses C) oil paper D) tube
• Image size in pin-hole camera is A) big B) small C) equal D) tall
• How many pipes the pin-hole camera have? A) 2B) 3 C) 4 D) 1
• Predict what would happen if we make two pin-holes in the camera?
• Malati noticed changes in the lengths of her shadows during the daytime. She had some doubts about this. What could be those doubts?
• Write the difference between opaque and transperent substances?
• Hold a glass slab at one end with your hand and stand in the sunlight. See the shadows of your hand and glass slab. Explain what you observed.
• Between an electric bulb and a tube light, which forms sharp shadows of objects? Do an experiment to find out and give the reasons.
• If we focus a coloured light on an opaque object, does the shadow of the object possess colour or not? Predict and do the experiment to verify your predictions. (Coloured light can be obtained by covering torch glass with a transparent coloured paper).
• What are the other possible shapes?