MODERN PUBLICATION-Unit test - Properties of bulk matter-Example
- Explain why: A body with large reflecting is a poor emitter.
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- Explain why: A brass tumbler feels much colder than a wooden tray on...
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- Explain why: An optical pyrometer (for measuring high temperature) c...
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- Explain why: The earth without its atmosphere would be in hospitably...
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- Explain why: Heating systems based on circulation of steam are more ...
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- A body cools from 80^@C to 50^@C in 5 minuts. Calculate the time it ta...
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- A wire elongates by l mm when a load W is hanged from it. If the wire ...
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- Two wires are made of the same material and have the same volume. Howe...
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- If S is stress and Y is Young's modulus of material of a wire, find th...
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- A wire fixed at the upper end stretches by length l by applying a forc...
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- A wire suspended vertically from one of its ends is stretched by attac...
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- Spherical balls of radius 'R' are falling in a viscous fluid of viscos...
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- If the terminal speed of a sphere of gold (density =19.5kg//m^3) is 0....
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- Water is flowing continuously from a tap having an internal diameter 8...
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- A cylinder of height 20 m is completely or filled with water. Find the...
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- A 20 cm long capillary tube is dipped in water. the water rises up to ...
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- If two soap bubbles of different radii are connected by a tube
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- Work done in increasing the size of a soap bubble from a radius of 3cm...
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- The heat required to raise the temperature of a body by 1C degree is c...
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- The temperature of the two outer surfaces of a composite slab, consist...
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