1941: Consider the following statements:
1. A widely used musical scale called diatonic scale has seven frequencies.
2. The frequency of the note Sa- (lk) is 256 Hz and that of Ni- (uh) is 512 Hz.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
1942: In the context of independent India's economy, which one of the following was the earliest event to take place?
(a) Nationalisation of Insurance companies
(b) Nationalisation of State Bank of India
(c) Enactment of Banking Regulation Act
(d) Introduction of First Five-Year Plan
1943: Which of the following is the correct order of increasing size of the grains of soil particles?
(A) Clay
(B) Silt
(C) Sand
(D) Gravel
----------------------------------
(a) A, B, C, D
(b) D, C, A, B
(c) B, C, A, D
(d) C, D, B, A
1944: Consider the following statements :
The satellite Oceansat-2 launched by India helps in
1. estimating the water vapour content in the atmosphere.
2. predicting the onset of monsoons.
3. monitoring the pollution of coastal waters.
Which of the statements given above is/are correct ?
(a) 1 and 2 only
(b) 2 only
(c) 1 and 3 only
(d) 1, 2 and 3
1945: The main constituents of pearl are
(a) calcium carbonate and magnesium carbonate
(b) aragonite and conchiolin
(c) ammonium sulphate and sodium carbonate
(d) calcium oxide and ammonium chloride