Physics
General
Easy
Question
If the earth is at one-fourth of its present distance from the sun the duration of year will be
- half the present Year
- one-eight the present year
- one-fourth the present year
- one-sixth the present year
The correct answer is: one-eight the present year
Related Questions to study
physics
The period of a satellite in a circular orbit of radius R is T. the period of another satellite in a circular orbit of radius 4R is
The period of a satellite in a circular orbit of radius R is T. the period of another satellite in a circular orbit of radius 4R is
physicsGeneral
physics-
Here is a cube made from twelve wire each of length 
, An ant goes from 
to 
through path A-B-C-G. Calculate the displacement.
Here is a cube made from twelve wire each of length , An ant goes from to through path A-B-C-G. Calculate the displacement.
physics-General
physics-
As shown in the figure a particle starts its motion from 0 to . And then it moves from. A to B. 
is an are find the Path length
As shown in the figure a particle starts its motion from 0 to . And then it moves from. A to B. is an are find the Path length
physics-General
physics-
A particle moves from A to P and then it moves from P to B as shown in the figure. Find path length and displacement.
A particle moves from A to P and then it moves from P to B as shown in the figure. Find path length and displacement.
physics-General
physics-
A particle moves from A to B and then it moves from B to C as shown in figure. Calculate the ratio between path length and displacement.
A particle moves from A to B and then it moves from B to C as shown in figure. Calculate the ratio between path length and displacement.
physics-General
physics-
As shown in the figure a particle moves from. 0 to A, and then to B. Find pathlength and displacement.
As shown in the figure a particle moves from. 0 to A, and then to B. Find pathlength and displacement.
physics-General
Maths-
The vectors 
are equal in length and pair wise make equal angles. If 
, then 
For such questions, concept of scalar product is important. When we take a dot product of two vectors, we get a scalar value. This is called as scalar product.
The vectors are equal in length and pair wise make equal angles. If , then
Maths-General
For such questions, concept of scalar product is important. When we take a dot product of two vectors, we get a scalar value. This is called as scalar product.
physics
The figure shows elliptical orbit of a planet m about the sun s . the shaded area SCD is twice, the Saded area SAB. If t1 is the time tor the planet to move trom C' and U and t2 is the time to move from A to B then
The figure shows elliptical orbit of a planet m about the sun s . the shaded area SCD is twice, the Saded area SAB. If t1 is the time tor the planet to move trom C' and U and t2 is the time to move from A to B then
physicsGeneral
physics-
A Particle of mass 
is at rest at t=0. The force exerting on it in 
-direction is 
. Which one of the following graph is of speed 
A Particle of mass is at rest at t=0. The force exerting on it in -direction is . Which one of the following graph is of speed
physics-General
physics-
As shown in figure a block of mass is aftachod with a cart. If the coefficient of static friction between the surface of cart and block is 
than what would be accelcration 
of cart to prevent the falling of block ?
As shown in figure a block of mass is aftachod with a cart. If the coefficient of static friction between the surface of cart and block is than what would be accelcration of cart to prevent the falling of block ?
physics-General
maths-
If the vectors 
and 
make an abtuse angle for any 
, then 
belangs to
If the vectors and make an abtuse angle for any , then belangs to
maths-General
physics
A geostationary satellite is orbiting the earth at a height of 5R above that of surface of the earth. R being the radius of the earth. The time period of another satellite in hours at a height of 2R from the surface of earth is hr.
A geostationary satellite is orbiting the earth at a height of 5R above that of surface of the earth. R being the radius of the earth. The time period of another satellite in hours at a height of 2R from the surface of earth is hr.
physicsGeneral
chemistry-
The most common minerals of phosphorus are
The most common minerals of phosphorus are
chemistry-General
physics
The time period T of the moon of planet Mars(Mm) is related to its orbital radius R as (G = Gravitational constant)
The time period T of the moon of planet Mars(Mm) is related to its orbital radius R as (G = Gravitational constant)
physicsGeneral
physics-
A mass of 6 kg is suspended by a rope of lengih 2 m form the ceiling . A force of 50 N in the horizonlal direction is applied at the mid Point P of the rope as shown in figure. what is the angle the rope makes. with the vertical in equilibrium ? 
Neglect mass of the rope:
A mass of 6 kg is suspended by a rope of lengih 2 m form the ceiling . A force of 50 N in the horizonlal direction is applied at the mid Point P of the rope as shown in figure. what is the angle the rope makes. with the vertical in equilibrium ? Neglect mass of the rope:
physics-General
