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An object floats in water with 10% of its volume outside and in oil 30% of its volume outside. The. specific gravity of the oil is.
20
Sep
An object floats in water with 10% of its volume outside and in oil 30% of its volume outside. The. specific gravity of the oil is. An object floats in water with 10% of its volume outside and in oil 30% of its volume outside. The. specific gravity of the oil is. September 20, 2020 [...]
Spheres of iron and lead having same mass are completely immersed in water. Density of lead is more than that of iron. Apparent loss of weight is W1 for iron sphere and W2 for lead sphere .Then W1/W2 is
20
Sep
Spheres of iron and lead having same mass are completely immersed in water. Density of lead is more than that of iron. Apparent loss of weight is W1 for iron sphere and W2 for lead sphere .Then W1/W2 is A hollow sphere of external radius R and thickness t September 20, 2020 Category: Chapter 13 [...]
The force acting on a window of area 50cm × 50cm of a submarine at a depth of 2000m in an ocean, the interior of which is maintained at sea level atmospheric pressure is (Density of sea water = 10^(3)kgm^(-3), g = 10ms^(-2)`)
20
Sep
The force acting on a window of area 50cm × 50cm of a submarine at a depth of 2000m in an ocean, the interior of which is maintained at sea level atmospheric pressure is (Density of sea water = 10^(3)kgm^(-3), g = 10ms^(-2)`) g = 10ms^(-2)`) The force acting on a window of area 50cm [...]
R1, R2, R3 are different values of R, A, B and C are the null points obtained corresponding to R1, R2 and R3 respectively. For which resistor, the value of X will be the most accurate?
20
Sep
R1, R2, R3 are different values of R, A, B and C are the null points obtained corresponding to R1, R2 and R3 respectively. For which resistor, the value of X will be the most accurate? ( R1 A) B and C are the null points obtained corresponding to R1 R2 R2 and R3 respectively. [...]
A cylindrical block floats vertically in a liquid of density ρ1 kept in a container such that the fraction of volume of the cylinder inside the liquid is x1. Then some amount of another immiscible liquid of density ρ2 (ρ2
20
Sep
A cylindrical block floats vertically in a liquid of density ρ1 kept in a container such that the fraction of volume of the cylinder inside the liquid is x1. Then some amount of another immiscible liquid of density ρ2 (ρ2 A hollow sphere of external radius R and thickness t September 20, 2020 Category: Chapter [...]
Two solids P and Q float in water. It is observed that P floats with half of its volume immersed and Q floats with 2/3rd of its volume is immersed. The ratio of densities of P and Q is.
20
Sep
Two solids P and Q float in water. It is observed that P floats with half of its volume immersed and Q floats with 2/3rd of its volume is immersed. The ratio of densities of P and Q is. Two solids P and Q float in water. It is observed that P floats with half [...]
A resistance R is to be measured using a meter bridge. Student chooses the standared resistance S to be 100Ω. He finds the null point at l1=2.9cm. He is told to attempt to improve the accuracy. Which of the folllowing is a useful way?
20
Sep
A resistance R is to be measured using a meter bridge. Student chooses the standared resistance S to be 100Ω. He finds the null point at l1=2.9cm. He is told to attempt to improve the accuracy. Which of the folllowing is a useful way? Two cells of emfs approximately 5 V and 10 V are [...]
To determine the composition of a bimetallic alloy, a sample is first weighed in air and then in water. These weights are found to be w1 and w2 respectively. If the densities of the two constituent metals are ρ1 and ρ2 respectively, then the weight of the first metal in the sample is (where ρw is the density of water)
20
Sep
To determine the composition of a bimetallic alloy, a sample is first weighed in air and then in water. These weights are found to be w1 and w2 respectively. If the densities of the two constituent metals are ρ1 and ρ2 respectively, then the weight of the first metal in the sample is (where ρw [...]
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a sample is first weighed in air and then in water. These weights are found to be w1 and w2 respectively. If the densities of the two constituent metals are ρ1 and ρ2 respectively ,
then the weight of the first metal in the sample is (where ρw is the density of water) ,
To determine the composition of a bimetallic alloy ,
In a practical wheat stone bridge circuit as shown, when one more resistance of 100Ω is connected in parallel with unknown resistance ‘x’, then ratio l1/l2 become ‘2’l1 is balance length , AB is a uniform wire. Then value of ‘x’ must be :
20
Sep
In a practical wheat stone bridge circuit as shown, when one more resistance of 100Ω is connected in parallel with unknown resistance ‘x’, then ratio l1/l2 become ‘2’l1 is balance length , AB is a uniform wire. Then value of ‘x’ must be : AB is a uniform wire. Then value of 'x' must be [...]
A uniform rod is suspended horizontally from its mid-point. A piece of metal whose weight is w is suspended at a distance l from the mid point. Another weight W1 is suspended on the other side at a distance l1 from the mid-point to bring the rod to a horizontal position. When w is completely immersed in water, w1 needs to be kept at a distance l2 from the mid-point to get the rod back into horizontal position. The specific gravity of the metal piece is
20
Sep
A uniform rod is suspended horizontally from its mid-point. A piece of metal whose weight is w is suspended at a distance l from the mid point. Another weight W1 is suspended on the other side at a distance l1 from the mid-point to bring the rod to a horizontal position. When w is completely [...]