A particle moves in a circle of radius 5 cm with constant speed and time period
A particle moves in a circle of radius 5 cm with constant speed and time period 0.2πs. The acceleration of…
7 years ago
Easy
If the dimensions of a physical quantity are givenby Mᵃ Lᵇ Tᶜ, then the physical
If the dimensions of a physical quantity are givenby Mᵃ Lᵇ Tᶜ, then the physical quantity will be: Options (a)…
7 years ago
Young’s modulus of the material of a wire is 18×10¹¹ dyne cm⁻².its value in SI is
Young's modulus of the material of a wire is 18 x 10¹¹ dyne cm⁻². Its value in SI is Options…
7 years ago
Let A = i Acosθ +j B sinθ be any vector.Another vector B which is normal to A is
Let A = i Acosθ +j B sinθ be any vector.Another vector B which is normal to A is Options…
7 years ago
If a vector 2i+3j+8k is perpendicular to the vector 4j-4i+αk, then value of α is
If a vector 2i+3j+8k is perpendicular to the vector 4j-4i+αk, then value of α is Options (a) -1 (b) 1/2…
7 years ago
The radius of a ball is(5.2±0.2)cm.The percentage error in the volume of the ball
The radius of a ball is(5.2±0.2)cm.The percentage error in the volume of the ball is approximately Options (a) 11 %…
7 years ago
If the angular momentum of any rotating body increase by 200 % , then the increase
If the angular momentum of any rotating body increase by 200%, then the increase in its kinetic energy Options (a)…
7 years ago
The physical quantity which does not have the same dimensions as the other three is
The physical quantity which doesnot have the same dimensions as the other three is Options (a) spring constant (b) surface…
7 years ago
A circular disc rolls down an inclined plane.The ratio of rotational kinetic energy
A circular disc rolls down an inclined plane. The ratio of rotational kinetic energy to total kinetic energy is Options…
7 years ago
A particle moves in xy plane according to the equation x = 4t² + 5t + 16 and y = 5t
A particle moves in xy plane according to the equation x = 4t² + 5t + 16 and y =…
7 years ago