A test tube partially filled with water and tilted slightly is partially immersed in a beaker of water Why does the partially airy submerged part of the test tube appear shiny? Answer: A test tube partially filled with water and partially immersed in a beaker with a slight tilt makes the partially airy submerged part […]
The same current is passed through two wires of the same type for 1 minute and 5 minutes respectively. How many times the heat generated in the second wire will be the heat generated in the first wire? Answer: If the current and the resistance of the conductor remain unchanged, the heat generated in the
How will the sun look through red and blue glass together? Answer: If red and blue glasses are placed next to each other and viewed through them, the sun will appear black. Because red light emitted through red glass will be absorbed by the blue glass. As a result, no colour from the sun will
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What would the sun look like through a red glass? Answer: If you look at the sun through a red glass, it will appear red. Because red glass absorbs all the colours except red, which are the seven colour of light coming from the sun. Only the red colour reaches our eyes without being absorbed
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Answer: Darkness does not fall on the earth immediately after sunset. The surface is illuminated in low light. This time is called twilight. Again, just before sunrise, the surface darkens and light emerges. This time is called dawn. What causes twilight and dawn? The sun is below the horizon before sunrise and after sunset. As
What would happen if the movie screen was black? Answer: If the movie screen was black, it would have absorbed all the light. No light was reflected. As a result, the picture could not be seen on the screen. So, the movie screen is not black.
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What happens if you put a flat mirror instead of a screen on the movie screen? Answer: On the movie screen, the image of the object is formed. Instead of a screen, a plane mirror would reflect the incident light regularly. As a result, the audience could only see the image from a certain direction
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What would happen if the cinema screen was completely smooth? Answer: If the movie screen was completely smooth, the light would reflect regularly on the screen. As a result, the audience could only see the picture from a certain direction in the hall and were dazzled by the reflected light. The viewers on the other
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How will white flowers look through the blue glass? Answer: If you look at a white flower through a blue glass, the flower will appear blue. When the seven colours from the white flower fall on blue glass, the blue glass absorbs all colours except blue. Only blue colour will come to our eyes. As a
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How will red flowers look through the blue glass? Answer: If you look at a red flower through a blue glass, the flower will appear black. The blue glass absorbs all colours except blue. Consequently, the red colour coming from the red flower will be absorbed by the blue glass. No colour can be seen
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