3746: Assertion (A)
In our houses, the current in AC electricity line changes direction 60 times per second.
Reason (R):
The frequency of alternating voltage supplied is 60 hertz.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
3747: State Funding of elections takes place in
(a) USA and Canada
(b) Britain and Switzerland
(c) France and Italy
(d) Germany and Austria
3748: Who among the following became the Prime Minister of India without being earlier the Chief Minister of a State ?
I. Morarji Desai
II. Charan Singh
III. V. P. Singh
IV. Chandrashekhar
V. P.V. Narasimha Rao.
Select the correct answer from the codes given below.
Codes :
(a) I, II and IV
(b) II, III and V
(c) II only
(d) IV only
3749: Identical twins are born when:
(a) Two sperms fertilise one ovum
(b) Two sperms fertilise two ovums simultaneously
(c) One sperm fertilises the ovum and zygote divides into two separate cells developing independently
(d) One sperm fertilises two ovums
3750: There are five books A, B, C, D and E placed on a table. If A is placed below E, C is placed above D, B is placed below A and D is placed above E, then which of the following books touches the surface of the table?
(a) C
(b) B
(c) A
(d) E