Q301
Open questionImage formed by the actual intersection of reflecting rays (which we see on the screen) . . . . . . . .
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Physics GK · all questionsLight
Light
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Q302
Open questionThe minimum height of mirror, required to see whole stand up image of a man of height 1.50 metre shall be
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Q303
Open questionIn which year did Ole Roemer measure the speed of light for the first time in history?
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Q304
Open questionTelevision signals cannot be received beyond a certain distance because
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Q305
Open questionWhich colour is the complementary colour of yellow?
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Q306
Open questionA light wave is incident over a plane surface with velocity x. After reflection the velocity become
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Q307
Open questionWhen a light wave is reflected from a mirror, there is a change in its
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Q308
Open questionWhich are not complementary colours?
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Q309
Open questionThe ability of a medium to reflect light is also expressed by its . . . . . . . .
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Q310
Open questionThe sun is seen little before it rises and for a short while after it sets. This is because of
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Q311
Open questionWhat is the point of convergence or the point from which rays appear to be produced in the lens?
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Q312
Open questionWith a Concave mirror, when an object is placed at the Focus (F) which of the following applies for the image?
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Q313
Open questionThe human eye forms the image of an object at its . . . . . . . .
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Q314
Open questionWhich one of the following statement is correct for a plane mirror?
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Q315
Open questionWhy does water tank appear shallower when viewed from the top?
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Q316
Open questionMatch the columns.
| Column I | Column II |
| a. Refraction of light | 1. Sky appears blue |
| b. Scattering of light | 2. Twinkling of star |
| c. Reflection of light | 3. Mirage |
| d. Total internal reflection | 4. Kaleidoscope |
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Q317
Open questionWho was the first person to obtain a spectrum by passing light through a prism?
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Q318
Open questionThe bending of light rays in a medium is called-
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Q319
Open questionThe final image in a simple microscope is
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Q320
Open questionWhich of the following is used to split white light into different colours?
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