Four identical rods are joined to from a square. If the temperature difference
Four identical rods are joined to from a square. If the temperature difference across one diagonal is 100° C, then…
7 years ago
Properties of Bulk Matter
If the terminal speed of a sphere of gold (density=19.5 kg/m³) is 0.2 m/s
If the terminal speed of a sphere of gold (density=19.5 kg/m³) is 0.2 m/s in a viscous liquid (density=1.5 kg/m³)…
7 years ago
A black body at a temperature of 227⁰C radiates heat at a rate of 20 cal m⁻²s⁻¹.
A black body at a temperature of 227⁰C radiates heat at a rate of 20 cal m⁻²s⁻¹. When its temperature…
7 years ago
A wire is suspended vertically from one of its ends is stretched by attaching a weight
A wire is suspended vertically from one of its ends is stretched by attaching a weight of 200 N to…
7 years ago
If the temperature of the sun were to increase from T to 2T and its radius from R and 2R
If the temperature of the sun were to increase from T to 2T and its radius from R and 2R,…
7 years ago
A wooden stick 2 m long is floating on the surface of water. The surface tension
A wooden stick 2 m long is floating on the surface of water. The surface tension of water is 0.07…
7 years ago
A body cools in 7 minute from 60⁰C to 40⁰C. What time, in minute does it take to cool
A body cools in 7 minute from 60⁰C to 40⁰C. What time, in minute does it take to cool from…
7 years ago
A glass flask weighing 390 g having internal volume 500 cc just floats
A glass flask weighing 390 g having internal volume 500 cc just floats when half of it is filled with…
7 years ago
The value of Poisson’s ratio lies between
The value of Poisson's ratio lies between Options (a) 0 to 0.5 (b) 0.5 to 1 (c) (-1 to 1)…
7 years ago
Two bodies A and B having temperature 327° C and 427° C are radiating heat
Two bodies A and B having temperature 327° C and 427° C are radiating heat to the surroundings. The surrounding…
7 years ago