A boat of mass 40 kg is at rest.A dog of mass 4 kg moves in the boat
A boat of mass 40 kg is at rest.A dog of mass 4 kg moves in the boat with a…
7 years ago
Easy
A ship A is moving westwards with a speed of 10 km/h .The time after
A ship A is moving westwards with a speed of 10 km/h .The time after which the distance between them…
7 years ago
If A=4i+4j+4k and b=3i+j+4k, then angle between vectors A and B is
If A=4i+4j+4k and b=3i+j+4k, then angle between vectors A and B is Options (a) 180ﾟ (b) 90ﾟ (c) 45ﾟ (d)…
7 years ago
If h is planck’s constant and λ is wavelength, h/λ has dimensions of
If h is planck's constant and λ is wavelength, h/λ has dimensions of Options (a) momentum (b) energy (c) mass…
7 years ago
The horizontal range and the maximum height of a projectile are equal
The horizontal range and the maximum height of a projectile are equal. The angle of projection of the projectile is…
7 years ago
A missile is fired for maximum range with an initial velocity of 20 m/s
A missile is fired for maximum range with an initial velocity of 20 m/s. If g = 10 m/s², the…
7 years ago
If R is the radius of the earth and g is the acceleration due to gravity
If R is the radius of the earth and g is the acceleration due to gravity on the earth surface,…
7 years ago
Which of the following pairs of quantities does not have same dimensional
Which of the following pairs of physical quantities does not have same dimensional formulae? Options (a) work and torque (b)…
7 years ago
A particle moves a distance x in time but according to equation x=(t+5)⁻¹
A particle moves a distance x in time but according to equation x=(t+5)⁻¹.The acceleration of particle is proportional to Options…
7 years ago
Which of the following physical quantities has neither dimensions nor unit
Which of the following physical quantities has neither dimensions nor unit Options (a) Angle (b) luminous intensity (c) coefficient of…
7 years ago