Physics-
General
Easy
Question
A girl is riding on a flat car travelling with a constant velocity 10 ms-1 as shown in the fig. She wishes to throw a ball through a stationary hoop in such a manner that the ball will move horizontally as it passes through the hoop. She throws the ball with an initial speed 
with respect to car. The horizontal distance in front of the hoop at which ball has to be thrown is
- 1m
- 2m
- 4m
- 16m
The correct answer is: 16m
Related Questions to study
physics-
Two particles instantaneously at A & B respectively 4.5 meters apart are moving with uniform velocities as shown in the figure. The former towards B at 1.5 m/sec and the latter perpendicular to AB at 1.125 m/sec. The instant when they are nearest is:
Two particles instantaneously at A & B respectively 4.5 meters apart are moving with uniform velocities as shown in the figure. The former towards B at 1.5 m/sec and the latter perpendicular to AB at 1.125 m/sec. The instant when they are nearest is:
physics-General
physics-
A stone is projected from a horizontal plane. It attains maximum height 'H' & strikes a stationary smooth wall & falls on the ground vertically below the maximum height. Assume the collision to be elastic the height of the point on the wall where ball will strike is:
A stone is projected from a horizontal plane. It attains maximum height 'H' & strikes a stationary smooth wall & falls on the ground vertically below the maximum height. Assume the collision to be elastic the height of the point on the wall where ball will strike is:
physics-General
physics-
Which of the following curves may represent the speed of electron in a hydrogen atom as a function of principal quantum number n?
Which of the following curves may represent the speed of electron in a hydrogen atom as a function of principal quantum number n?
physics-General
physics-
The diagram shows the energy levels for an electron in certain hydrogen like atom. Which transition shown represents the emission of a photon with the most energy?
The diagram shows the energy levels for an electron in certain hydrogen like atom. Which transition shown represents the emission of a photon with the most energy?
physics-General
physics-
If 
and 
are the wavelength of 
X-rays emitted by 
and 
tin isotopes, then
If and are the wavelength of X-rays emitted by and tin isotopes, then
physics-General
physics-
STATEMENT – 1 Waves generated in a metal piece can be transverse and longitudinal path. because
STATEMENT – 2 Waves generated depend upon the method of creating waves in the metal.
STATEMENT – 1 Waves generated in a metal piece can be transverse and longitudinal path. because
STATEMENT – 2 Waves generated depend upon the method of creating waves in the metal.
physics-General
physics-
Which one of the following equations represents transverse progressive waves
Z1 = A cos (ωt – kx);
Z2 = A cos (ωt + kx)
Z3 = A cos (ωt + kx);
Z4 = A cos (2ωt + 2kx)
Which one of the following equations represents transverse progressive waves
Z1 = A cos (ωt – kx);
Z2 = A cos (ωt + kx)
Z3 = A cos (ωt + kx);
Z4 = A cos (2ωt + 2kx)
physics-General
physics-
If two waves of the from y = a sin (ωt – kx) and y = a cos (kx - ωt) are superposed, the resultant wave will have amplitude
If two waves of the from y = a sin (ωt – kx) and y = a cos (kx - ωt) are superposed, the resultant wave will have amplitude
physics-General
Maths-
Find the compound interest on Rs 5000 at 6% per annum for 3 years compounded annually
Find the compound interest on Rs 5000 at 6% per annum for 3 years compounded annually
Maths-General
physics-
In an imaginary atmosphere, the air exerts a small force F on any particle in the direction of the particle’s motion. A particle of mass ‘m’ projected upward takes a time t1 in reaching the maximum height and t2 in the return journey to the original point then
In an imaginary atmosphere, the air exerts a small force F on any particle in the direction of the particle’s motion. A particle of mass ‘m’ projected upward takes a time t1 in reaching the maximum height and t2 in the return journey to the original point then
physics-General
Maths-
The area of shaded region in the given figure is
The area of shaded region in the given figure is
Maths-General
maths-
In the adjacent figure, if the perimeter of the Sector is 50 cm and the area is ‘A’ cm2,then angle at the centre of the Sector (q )
In the adjacent figure, if the perimeter of the Sector is 50 cm and the area is ‘A’ cm2,then angle at the centre of the Sector (q )
maths-General
Maths-
The Area of the shaded region in the given figure is
The Area of the shaded region in the given figure is
Maths-General
Maths-
Area of the shaded portion is
Area of the shaded portion is
Maths-General
maths-
A Sphere of diameter 6 cm is dropped in a right circular Cylindrical vessel partly filled with water The diameter of the Cylindrical vessel is 12 cm If the sphere is completely submerged in water 'r' , then the level of the water raise in the Cylindrical vessel is
A Sphere of diameter 6 cm is dropped in a right circular Cylindrical vessel partly filled with water The diameter of the Cylindrical vessel is 12 cm If the sphere is completely submerged in water 'r' , then the level of the water raise in the Cylindrical vessel is
maths-General
