951: 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.
952: Consider the series given below :
4/12/95, 1/1/96, 29/1/96, 26/2/96,...
The next term of the series is
(a) 24/3/96
(b) 25/3/96
(c) 26/3/96
(d) 27/3/96
953: Fog is common around Newfoundland coast because:
(a) Icebergs melt around the coast
(b) Warm and cold currents meet
(c) The rainfall is heavy
(d) High tides cause storms
954: Which of the following countries signed the Tshwane Declaration in October, 2006 ?
(a) Saudi Arabia and S. Africa
(b) India and S. Africa
(c) China and S. Africa
(d) S. Africa and Bostswana
955: The highest grade of coal, whose surface is shining and has the highest calorific value, is:
(a) Lignite
(b) Peat
(c) Bituminous
(d) Anthracite