3966: Unemployment which occurs when workers move from one job to another job is known as
(a) Seasonal unemployment
(b) Frictional unemployment
(c) Technological unemployment
(d) Cyclical unemployment
3967: The resolving power of an electron microscope is much higher than that of an ordinary light microscope because resolving power increases:
(a) If wavelength is short and wavelength of electron beam can be made quite small by accelerating the electrons.
(b) If wavelength is short and light given by electrons has very short wavelength.
(c) If magnification is high and electronic lens provides much higher magnification.
(d) If magnification is high and the electron microscope has a battery of lenses to provide high magnification.
3968: Selence-1, the lunar orbiter mission belongs to which one of the following?
(a) China
(b) USA
(c) European Union
(d) Japan
3969: Sun's halo is produced by the refraction of light in
(a) Water vapour, in Stratus clouds
(b) Ice crystals in Cirro-Cumulus clouds
(c) Ice crystals in Cirrus clouds
(d) Dust particles in Stratus clouds
3970: Which one of the following statements is an appropriate description of deflation ?
(a) It is a sudden fall in the value of a currency against other currencies
(b) It is a persistent recession in both the financial and real sectors of economy
(c) It is a persistent fall in the general price level of goods and services
(d) It is a fall in the rate of inflation over a period of time