Assertion : Diamond is a form of carbon . Reasoning : carbon burns in air(oxygen) to form carbon dioxide . Choose the correct option from given below (A)A is true and R is true and R is the correct explanation for A. (B)A is true and R is true but...
amoolya34
Asked:
September 2023
Light strikes a mirror, making an angle of 600 to the surface. The angle made by the reflected light with the surface is- Choose the correct option from given below a. 60 degree b. 30 degree c. 90 degree d. 50 degree
amoolya34
Asked:
September 2023
4. Non-metals that show some lustre are a) Graphite and diamond b) Graphite and sulphur c) Iodine and diamond d) Iodine and graphite.
amoolya34
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September 2023
2. Metallic oxides are a) Basic oxides b) Acidic oxides c) Salts d) All of these
amoolya34
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September 2023
3. The non-metal that is a liquid at room temperature is a) Mercury b) Bromine c) Boron d) Carbon
amoolya34
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September 2023
1. Which physical property is more important in the selection of a metal for heating applications? a) Ductility b) Electrical conductivity c) Thermal conductivity d) Strength
amoolya34
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September 2023
V. ANSWER THE FOLLOWING IN DETAIL. 1)Explain how the conduction of heat occurs in the metal rod? 2) In a thermos flask how heat loss by all three modes of heat transfer is minimized. Explain.
amoolya34
Asked:
September 2023
2) In a thermos flask how heat loss by all three modes of heat transfer is minimized. Explain.
amoolya34
Asked:
September 2023
2) In a thermos flask how heat loss by all three modes of heat transfer is minimized. Explain.