The area of cross-section of a steel wire (Y=2.0×10¹¹ N/m²) is 0.1 cm².
The area of cross-section of a steel wire (Y=2.0x10¹¹ N/m²) is 0.1 cm². The force required to double its length…
5 years ago
Physics
Shearing stress causes change in
Shearing stress causes change in Options (a) Length (b) Breadth (c) Shape (d) Volume Correct Answer: Shape Explanation: No explanation…
5 years ago
A black body radiates 20 W at temperature 227⁰C. It temperature of the black body
A black body radiates 20 W at temperature 227⁰C. It temperature of the black body is changed to 727⁰C, then…
5 years ago
If the radius of star is R and it acts as a black body, what would be the temperature
If the radius of star is R and it acts as a black body, what would be the temperature of…
5 years ago
Water rises in a vertical capillary tube up to a height of 2.0 cm.
Water rises in a vertical capillary tube up to a height of 2.0 cm. If the tube is inclined at…
5 years ago
The total radiant energy per unit area, normal to the direction of incidence
The total radiant energy per unit area, normal to the direction of incidence, received at a distance R from the…
5 years ago
Heat is flowing through a rod of length 50 cm and area of cross-section 5 cm².
Heat is flowing through a rod of length 50 cm and area of cross-section 5 cm². Its ends are respectively…
5 years ago
A liquid wets a solid completely. The meniscus of the liquid in a sufficiently long
A liquid wets a solid completely. The meniscus of the liquid in a sufficiently long tube is Options (a) Flat…
5 years ago
A black body at 227⁰C radiates heat at the rate of 7cals/cm²s. At a temperature
A black body at 227⁰C radiates heat at the rate of 7cals/cm²s. At a temperature of 727⁰C, the rate of…
5 years ago
The two ends of a rod of length L and a uniform cross-sectional area
The two ends of a rod of length L and a uniform cross-sectional area A are kept at two temperatures…
5 years ago