3681: Ten Identical particles are moving randomly inside a closed box. What is the probability that at any given point of time all the ten particles will be lying in the same half of the box?
(A) 2/11
(B) 2/9
(C) 1/5
(D) 1/2
3682: If a potato is placed on a pure paper plate which is white and unprinted and put in a microwave oven, the potato heats up but the paper plate does not. This is because:
(a) Potato contains water whereas paper does not contain water
(b) Potato transmits microwaves whereas paper reflects microwaves
(c) Potato is mainly made up of starch whereas paper is mainly made up of cellulose
(d) Potato is a fresh organic material whereas' paper is a dead organic material
3683: In an examination, every candidate took Physics or Mathematics or both. 65.8% took Physics and 59.2% took Mathematics. The total number of candidates was 2000. How many candidates took both Physics and Mathematics ?
(a) 750
(b) 500
(c) 250
(d) 125
3684: Which of the following fish are bred exclusively in the cold regions of India ?
I. Catla.
II. Tinca.
III. Bhekti.
IV. Trout.
Choose the correct answer from the codes given below.
Codes:
(a) I and lV
(b) I and IV
(c) II and IV
(d) III and IV
3685: In 1920, which of the following changed its name to "Swarajya Sabha"?
(a) All India Home Rule League
(b) Hindu Mahasabha
(c) South Indian Liberal Federation
(d) The Servants of India Society