4161: 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
4162: Yuan is the currency of:
(a) China
(b) Japan
(c) Indonesia
(d) Burma
4163: Consider the following statements :
1. If magenta and yellow coloured circles intersect, the interested are will have red colour.
2. If cyan and magenta coloured circles intersect, the interested are will have blue colour.
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
4164: Who among the following introduced the famous Persian Festival of NAUROJ in India?
(a) Balban
(b) Iltutmish
(c) Firuz Tughlaq
(d) Ala-ud-din Khilji
4165: Which one of the following pairs of primitive tribes and places of their in-habitation is not correctly matched ?
(a) Buksa : Pauri-Garhwal
(b) Kol : Jabalpur
(c) Munda : Chhotanagpur
(d) Korba : Kodagu