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An asteroid of mass m is approaching earth, initially at a distance 10 RE with speed vi. It hits earth with a speed vf (RE and ME are radius and mass of earth),. Then
15
Sep
An asteroid of mass m is approaching earth, initially at a distance 10 RE with speed vi. It hits earth with a speed vf (RE and ME are radius and mass of earth),. Then An asteroid of mass m is approaching earth initially at a distance 10 RE with speed vi. It hits earth with [...]
A physical quantity x is calculated from x = ab^2 / root c. Calculate the percentage error in measuring x when the percentage errors in measuring a, b, and c are 4, 2, and 3%, respectively.
15
Sep
A physical quantity x is calculated from x = ab^2 / root c. Calculate the percentage error in measuring x when the percentage errors in measuring a, b, and c are 4, 2, and 3%, respectively. 2 A physical quantity x is calculated from x = ab^2 / root c. Calculate the percentage error in [...]
A man is carrying a block of a certain substance (of density 1000 kg m^−3) weighing 1kg in his left hand and a bucket filled with water and weighing 10 kg in his right hand. He drops the block into the bucket. How much load does he carry in his right hand now.
15
Sep
A man is carrying a block of a certain substance (of density 1000 kg m^−3) weighing 1kg in his left hand and a bucket filled with water and weighing 10 kg in his right hand. He drops the block into the bucket. How much load does he carry in his right hand now. a number [...]
The mass of the liquid flowing per second per unit area of cross section of the tube is proportional to P^x and V^y, where P is the pressure difference and v is the velocity, then the relation between x and y is
15
Sep
The mass of the liquid flowing per second per unit area of cross section of the tube is proportional to P^x and V^y, where P is the pressure difference and v is the velocity, then the relation between x and y is The mass of the liquid flowing per second per unit area of cross [...]
Which of the following does not have the dimensions of velocity? (Given e0 is the permittivity of free space, moun0 is the permittivity of free space, v is frequency, lemda is wavelength, P is the pressure
15
Sep
Which of the following does not have the dimensions of velocity? (Given e0 is the permittivity of free space, moun0 is the permittivity of free space, v is frequency, lemda is wavelength, P is the pressure lemda is wavelength moun0 is the permittivity of free space P is the pressure v is frequency Which of [...]
Which of the following product of e, h, muon, G ( where muon is the permeability) be taken so that the dimensions of the product are same as that of the speed of light?
15
Sep
Which of the following product of e, h, muon, G ( where muon is the permeability) be taken so that the dimensions of the product are same as that of the speed of light? G ( where muon is the permeability) be taken so that the dimensions of the product are same as that of [...]
The resistance of a metal is given by R = V/I, where V is potential difference and I is the current. In a circuit, the potential difference across resistance is V = (8 +- 0.5) V and current in resistance,
15
Sep
The resistance of a metal is given by R = V/I, where V is potential difference and I is the current. In a circuit, the potential difference across resistance is V = (8 +- 0.5) V and current in resistance, the potential difference across resistance is V = (8 +- 0.5) V and current in [...]
An experiment measures quantities a, b, and c, and then X is calculated from X = a^1/2 b^2 / c^3. If the percentage errors in a, b, and c are +- 1% , +- 3%, and +- 2 %, respectively, then the percentage error in X can be
15
Sep
An experiment measures quantities a, b, and c, and then X is calculated from X = a^1/2 b^2 / c^3. If the percentage errors in a, b, and c are +- 1% , +- 3%, and +- 2 %, respectively, then the percentage error in X can be 3% An experiment measures quantities a and [...]
Statement I: In the three cases shown in the figure, force exerted by liquid on three vessels is the same. Statement II: Pressure at the bottom in each case is same.
15
Sep
Statement I: In the three cases shown in the figure, force exerted by liquid on three vessels is the same. Statement II: Pressure at the bottom in each case is same. force exerted by liquid on three vessels is the same. Statement II: Pressure at the bottom in each case is same. Statement I: In [...]
The percentage errors in the measurement of mass and speed are 2% and 3%, respectively. How much will be the maximum error in the estimation of KE obtained by measuring mass and speed?
15
Sep
The percentage errors in the measurement of mass and speed are 2% and 3%, respectively. How much will be the maximum error in the estimation of KE obtained by measuring mass and speed? respectively. How much will be the maximum error in the estimation of KE obtained by measuring mass and speed? The percentage errors [...]