611: When light enters a closed room through a small hole in the door, the image of an outside building appears as inverted on the opposite wall. This is because:
(a) The hole acts as a convex lens
(b) Light takes curvature at the edges of the hole
(c) Of rectilinear propagation of light
(d) The hole acts as a concave lens
612: Consider the following statements :
1. The Union Government fixes, the Statutory Minimum Price of sugarcane for each sugar season.
2. Sugar and sugarcane are essential commodities under the Essential Commodities Act.
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
613: Which one of the following Articles of the Indian Constitution provides that "It shall be the duty of the Union to protect every State against external aggression and internal disturbance"?
(a) Article 215
(b) Article 275
(c) Article 325
(d) Article 355
614: Which of the following pairs are correctly matched ?
I. Dow Jones : New York
II. Hang Seng : Seoul
III. FTSE - 100 : London
Select the correct answer using the codes given below:
(a) I, II and III
(b) II and III
(c) I and II
(d) I and III
615: In a survey, it was found that 80% of those surveyed owned a car while 60% of those surveyed owned a mobile phone. If 55% owned both a car and a mobile phone, what per cent of those surveyed owned a car or a mobile phone or both ?
(a) 65%
(b) 80%
(c) 85%
(d) 97.5%