Question
Which of the following statement is correct?
I. Value of βgβ is higher at poles than equator
II. Weight of an object at moon is 1/6 the weight of the object at earth
Solution
The value of the acceleration due to gravity at the pole is larger than at the equator because the poles are closer to the center of the earth due to the earth's oblateness. The mass of moon is 1/100 times and its radius 1/4 times that of earth As a result , the gravitational attraction on the moon is about one sixth when compared to earth.
More Physics GS Questions
- Which of the following is an alpha particle which is emitted in radioactivity?
- Which of the following phenomena cannot be explained by the wave theory of light?
- Question 3
- The balance point in a potentiometer for a cell of emf 1.5 V is 60 cm. If a resistance of 5 Ξ© is connected in parallel with the cell and the new balance po...
- A sample contains equal numbers of two isotopes X and Y, each with half-lives of 10 days and 20 days respectively. What is the ratio of activities Aβ : Aᡧ ...
- A circular coil of wire consisting of 120 turns, each of radius 12 cm carries a current of 0.30 A. What is the magnitude of the magnetic field B at the cen...
- Which law states that the induced electromotive force (e.m.f.) is proportional to the rate of change of magnetic flux linkage?
- A beam of light consisting of two wavelengths, 600 nm and 420 nm, is used to obtain interference fringes in a Young’s double-slit experiment. Find th...
- Which instrument is used to measure electric current?Β Β
- Which type of mirror is used as a rear-view mirror in vehicles and why?
