4471: Assertion (A) : In the visible spectrum of light, red light is more energetic than green light.
Reason (R) : The wavelength of red light is more than that of green light.
Code:
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
4472: Total internal reflection occurs when light travels from:
(a) A rarer medium to a denser medium
(b) A denser medium to a rarer medium
(c) A rarer medium to a denser medium and the angle of incidence is less than the critical angle
(d) A rarer medium to a denser medium and the angle of incidence is greater than the critical angle
4473: Which one of the following countries occupies the first place in the Global Competitive ReportĀ of World Economic Forum ?
(a) USA
(b) Singapore
(c) Hong Kong
(d) France
4474: In the balanced dietaries for a day of an adult working man, weights of carbohydrate food and total protein food (both superior and inferior) should be in order of
(a) 600 gm and 420 gm respectively
(b) 600 gm and 600 gm respectively
(c) 420 gm and 600 gm respectively
(d) 420 gm and 420 gm respectively
4475: Which one of the following was worshipped as a heavenly God by ancient Indians?
(a) Surya
(b) Angaraka (Mangala)
(c) Sukra
(d) Sani