821: Which one of the following sequences indicates the correct chronological order?
(a) Shankaracharya-Ramanuja-Chaitanya
(b) Ramanuja-Shankaracharya-Chaitanya
(c) Ramanuja-Chaitanya-Shankaracharya
(d) Shankaracharya-Chaitanya-Ramanuja
822: 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
823: Consider the following statements with reference to human body :
1. The common bile duct release its contents into stomach.
2. The pancreatic duct releases its contents into duodenum.
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
824: Sodium vapour lamps are preferred to incandescent lamps because of:
(a) Higher efficiency
(b) Higher tolerance in voltage fluctuations
(c) Easy installation
(d) Higher intensity of illumination
825: Which of the following plants is biennial?
(a) Banana
(b) Pineapple
(c) Jack fruit
(d) Carrot