661: Assertion (A) :
In a motion picture, usually 24 frames are projected every second over the whole length of the film.
Reason (R) :
An image formed on the retina of eye persists for about 0.1 s after the removal of stimulus.
(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is not a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
662: The tendency of lower caste people to improve their living standard and status by imitating the upper class people is known as:
(a) Assimilation
(b) Sanskritisation
(c) Urbanisation
(d) Acculturisation
663: A wooden block is floating in water. If 4/5 of its volume is immersed in water and volume of the water displaced is 800 ml, the volume of the block is
(a) 1140 ml
(b) 200 ml
(c) 800 ml
(d) 1000 ml
664: If there were no organic life on the Earth, the amount of oxygen in the atmosphere will:
(a) Remain unchanged.
(b) Be approximately hundred per cent.
(c) Be almost nil.
(d) Be approximately fifty per cent.
665: With reference to colonial period of Indian history, match List I (Person) with List II (Event) and select the correct answer using the codes given below the lists :
List I-------------List II
(Person)----------(Event)
A. MacDonald-----1. Doctrine of Lapse
B. Linlithgow------2. Communal Award
C. Dalhousie------3. August Offer
D. Chelmsford-----4. Dyarchy
Codes:
A B C D
(a) 3 2 1 4
(b) 3 2 4 1
(c) 2 3 1 4
(d) 2 3 4 1