841: The Supreme Court of India tenders advice to the President on a matter of law or fact

(a) on its own initative
(b) only if he seeks such advice
(c) only if the matter relates to the Fundamental Rights of citizens
(d) only if the issue poses a threat to the unity and integrity of the country
842: Consider the following statements :

1. In the first Lok Sabha, the single largest party in the opposition was the Swatantra Party.
2. In the Lok Sabha, a "Leader of the Opposition" was recognised for the first time in 1969.
3. In the Lok Sabha, if a party does not have a minimum of 75 members, its leader cannot be recognised as the Leader of the Opposition.

Which of the statements given above is/are correct?

(a) 1 and 3 only
(b) 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
843: The phenomenon of mirage is due to:

(a) Increased absorption of light by air at higher temperature

(b) Change in the refractive index of air with the change in temperature

(c) Total internal reflection

(d) Decreased absorption of light by air at higher temperature
844: In a remote Indian village with a scarcity of fuel, the people draw water from a well. They should be advised before drinking that water to:

(a) Boil it

(b) Use ion exchange resins

(c) Use solar stills for distilling

(d) Use potassium permanganate for purifying the water
845: Consider the following statements :

1. The "Bombay Manifesto" signed in 1936 openly opposed the preaching of socialist ideals.

2. It evoked support from a large section of business community from all across India.

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