691: Sun's halo is produced by the refraction of light in
(a) Water vapour, in Stratus clouds
(b) Ice crystals in Cirro-Cumulus clouds
(c) Ice crystals in Cirrus clouds
(d) Dust particles in Stratus clouds
692: Match the hormones in List I with items in List II and select the correct answer using the codes given below the Lists :
List I
I. Adrenaline
II. Estrogen
III. Insulin
IV. Pheromones
List II
(A) Anger, fear, danger
(B) Attracting partners through sense of smell
(C) Females
(D) Glucose
Codes:
(a) I-C, II-A, III-D, IV-B
(b) I-A, II-C, III-B, IV-D
(c) I-A, II-C, III-D, IV-B
(d) I-C, II-A, III-B, IV-D
693: The working of the quartz crystal In the watch is based on the
(a) Photoelectric Effect
(b) Johnson Effect
(c) Piezo-electric Effect
(d) Edison Effect
694: For outstanding contribution to which one of the following filed is Shanti Swarup Bhatnagar Prize given?
(a) Science
(b) Social Service
(c) Performing Arts
(d) Literature
695: Match List I with List II and select the correct answer using the codes given below the Lists :
List I-------------------List II
I. German Silver---------(A) Tin
II. Solder----------------(B) Nickel
III. Bleaching Powder-----(C) Sodium
IV. Hypo-----------------(D) Chlorine
Codes:
(a) I-A, II-B, III-D, IV-C
(b) I-B, II-A, III-C, IV-D
(c) I-A, II-B, III-C, IV-D
(d) I-B, II-A, III-D, IV-C