176: Assertion (A) :
Oral Rehydration Therapy (ORT) has been strongly recommended for reducing infant mortality
Reason (R) :
Gastrointestinal problems are very common among children especially in the developing countries
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
177: In typhoid which of the following drugs is administered?
(a) Chloromycetin
(b) Penicillin
(c) Sulphonamide
(d) Tetracycline
178: Basel II relates to which one of the following?
(a) International standards for safety in civil aviation
(b) Measures against cyber crimes
(c) Measures against drug abuse by sports persons
(d) International standards for measuring the adequacy of a banks capital
Explanation:
Basel II is the revised international capital framework. The Basel II framework describes a more comprehensive measure of minimum standard for capital adequacy that national supervisory authorities are now working to implement through domestic rule-making and adaptation procedures.
179: Optical fibre works on the principle of
(a) total internal reflection
(b) refraction
(c) scattering
(d) interference
Explanation:
Optical fibre works on the principle of Total Internal Reflection (TIR). The incident light falls on the optical fibre tube at an angle of incidence more than the critical angle and therefore undergoes TIR. Inside the tube the light undergoes multiple TIR and thus does not escape form the tube.
180: What is the increasing order of the wavelengths of the following colours?
1. Orange
2. Indigo
3. Yellow
4. Violet
(a) 1, 2, 3 and 4
(b) 3, 1, 4 and 2
(c) 1, 3, 2 and 4
(d) 4, 2, 3 and 1