Match List - I with List - II.
List - I | List - II | ||
(a) | 2SO2 (g)+O2 (g) →2SO3 | (i) | Acid rain |
(b) | HOCl(g) h\(^\nu\)→OH+Cl | (ii) | Smog |
(c) | CaCO3+H2SO4→CaSO4+H2O+CO2 | (iii) | Ozone |
(d) | NO2(g) \(^{h\nu}\)→NO(g)+O(g) | (iv) | Tropospheric |
Choose the correct answer from the options given below.
(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
The correct answer is option (D) : (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
There is a number of factors that contribute to the pollution of the environment. Some of the major causes of atmospheric pollution are given below -