3246: 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.
3247: Match List I with List II and select the correct answer using the codes given below the Lists :
List I List II
(Important Day) (Date)
I. World Environment Day (A) March 20
II. World Forestry Day (B) June 5
III. World Habitat Day (C) September 16
IV. World Ozone Day (D) October 3
(E) December 10
Codes:
(a) I-B, II-A, III-D, IV-E
(b) I-A, II-B, III-D, IV-C
(c) I-A, II-B, III-C, IV-D
(d) I-B, II-A, III-D, IV-C
3248: What was Komagata Maru?
(a) A political party based in Taiwan
(b) Peasant communist leader of China
(c) A naval ship on voyage to Canada
(d) A Chinese village where Mao Tse Tung began his Long march
3249: Consider the following areas:
1. Bandipur
2. Bhitarkanika
3. Manas
4. Sunderbans
Which of the above are Tiger Reserves?
(a) 1 and 2 only
(b) 1, 3 and 4 only
(c) 2, 3 and 4 only
(d) l, 2, 3 and 4
3250: 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