Home
Class 11
PHYSICS
An object is weight at the equator by a ...

An object is weight at the equator by a beam balance and a spring balance giving readings `W_(b)` and `W_(s)` respectively It is again weighed in the same manner at the north pole, giving readings of `W_(b')` and `W_(s')` respectively. Assume that intensity of earth gravitational field is the same every where on the earth's surface and that the balances are quite sensitive .

A

only a & b are true

B

only a,b,d are true

C

only a,c,d are true

D

All are true

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

An object is weighted at the North Pole by a beam balance and a spring balance, giving readings of W_B and W_S respectively. It is again weighed in the same manner at the equator, giving readings of W'_B and W'_S respectively. Assume that the acceleration due to gravity is the same everywhere and that the balance are quite sensitive, Choose the wrong option

A and B are moving with the same speed 10m/s in the direction E-30^(@)-N and E-30^(@)-S respectively. Find the relative velocity of A w.r.t. B.

A cubical block (side l ) is in equilibrium at the interface of two liquids A and B. The spring balance reads W Newton. If the block is weighted in air, the reading of the spring balance will be :

A body suspended on a spring balance in a ship weighs W_(0) when the ship is at rest. When the ship begins to move along the equator with a speed v , show that the scale reading is very close to W_(0) (1+-2omegaV//g ), where omega is the angular speed of the earth.

The angular velocity of the earth's rotation about its axis is omega . An object weighed by a spring balance gives the same reading at the equator as at height h above the poles. The value of h will be

Read the following statements : S_(1) : An object shall weigh more at pole than at equator when weighed by using a physical balance. S_(2) : It shall weigh the same at pole and equator when weighed by using a physical balance. S_(3) : It shall weigh the same at pole and equator when weighed by using a spring balance. S_(4) : It shall weigh more at the pole than at equator when weighed using a spring balance. Which of the above statements is/are correct ?

A body is weighted by a spring balance to be 1.000 kg at the north pole. How much will it weight at the equator. Account for the earth\'s rotation only.

The work done in moving a particle in the gravitational field of earth from point A to point B along three different paths 1,2 and 3 are W_(1) , W_(2) and W_(3) respectively , then

A person stands on a spring balance at the equator. a.By what fraction is the balance reading less than his true weight? b.If the speed of earth's rotation is increased by such an amount that the balance reading is half the true weight, what will be the lenght of the day in this case?

Weight of a body depends directly upon acceleration due to gravity g . Value of g depends upon many factors. It depends upon the shape of earth, rotation earth etc. Weight of a body at a pole is more then that at a place on equator because g is maximum at poles and minimum on equator. Acceleration due to gravity g varies with latitude lambda as per relation given below : g_(rot)=g-Romega^(2)cos^(2)lambda where R is radius of earth and omega is angular velocity of earth. A body of mass m weighs W_(r ) in a train at rest. The train then begins to run with a velocity v around the equator from west to east. It observed that weight W_(m) of the same body in the moving train is different from W_(r ) . Let v_(e ) be the velocity of a point on equator with respect to axis of rotation of earth and R be the radius of the earth. Clearly the relative between earth and trainwill affect the weight of the body. Difference between Weight W_(r ) and the gravitational attraction on the body can be given as