1646: With reference to the usefulness of the by-products of sugar industry, which of the following statements is/are correct?
1. Bagasse can be used as biomass fuel for the generation of energy.
2. Molasses can be used as one of the feed stocks for the production of synthetic chemical fertilizers.
3. Molasses can be used for the production of ethanol.
Select the correct answer using the codes given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
1647: 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.
1648: A geographic region has the following distinct characteristics:
1. Warm and dry climate
2. Mild and wet winter
3. Evergreen oak trees
The above features are the distinct characteristics of which one of the following regions ?
(a) Eastern China
(b) Mediterranean
(c) Central Asia
(d) Atlantic coast of North America
1649: The limit beyond which stars suffer internal collapse is called:
(a) Chandrashekhar limit
(b) Eddington limit
(c) Hoyle limit
(d) Fowler limit
1650: Match List-I (Persons) with List-II (Positions) and select the correct answer using the codes given below the Lists:
List-I List-II
(Persons) (Positions)
(A) B.P. Mishra 1. Executive Director, IMF
(B) Suresh Kalamadi 2. Chairman, Steel Authority of India Ltd.
(C) PrafulPatel 3. President, Indian Olympic Association
(D) V. S. Jain 4. Vice-President, South Asian Region, World Bank
Codes:
A B C D
(a) 4 2 1 3
(b) 1 3 4 2
(c) 4 3 1 2
(d) 1 2 4 3