General Knowledge Questions

A basketball game last for a total of 48 minutes which has 4 quarters of 12 minutes each excluding all timeouts, 15 min half time, fouls,...

Asbestos can cause

•  Lungs

• Gastrointestinal tract  types of Cancer.

Benzene can cause

• Leukemia

• Hodgkin's lymphoma types of Cancer.

Cadmium can cause

• Prostate type of Cancer.

1) G.V. Mavalankar (1952-56)

2) M.A. Ayyangar (1956-57 & 1957-62)

3) Hukam Singh (1962-67)

4) N. Sanjiva Reddy (1967-69)

5) Gurdial Singh Dhillon (1969-1971 & 1971-1975)

6) Bali Ram Bhagat (19976-77)

7) K.S. Hegde (1977-80)

8) Balram Jakhar (1980-1984 & 1984-1989)

9) Rabi Ray (1989-91)

10) Shivraj Patil (1991-96)

11) P.A. Sangma (1996-98)

12) G.M.C. Balayogi (1998-99 & 1999-2002)

 13) Manohar Joshi (2002-04)

14) Somnath Chatterjee (2004-09)

15) Meira Kumar (2009-14)

16) Sumitra Mahajan (2014-19)

17) Om Birla (2019 -)

When you compress or stretch a spring, as soon as the stress is relieved, the spring attains its normal shape instantly. Its Elastic potential energy helps it do so. Generally, these elastic substances follow the Hooke’s law.

According to this Law, the force needed to change the shape of spring is proportional to the displacement of the spring. The displacement referred here is how far the spring is compressed or stretched from its normal shape. Mathematically, Hook’s Law can be summarised as F= – k x. Here ‘k’ is the spring constant and ‘x’ is the displacement.

Black  surfaces are good emitters of heat ( They are also good absorbers of heat). If the black surface is rough too, the emitting will be better. So (b) is the correct answer. Shining surfaces reflect back radiation. So if the black surface is also shining the effectiveness of emitting heat is lessened.