A. relative terms
B. absolute terms
C. negative terms
D. positive terms

A. transverse waves
B. longitudinal waves
C. may be both types
D. none of the above

A. 7 km/s
B. 11.2 km/s
C. 1.1 km/s
D. 21.2 km/s

A. good conductor of electricity
B. bad conductor of electricity
C. perfect insulator
D. perfect conductor

A. discomfort due to heat
B. excess of heat in atmosphere
C. presence of water vapour in the air
D. absence of water vapour in the air

A. Mendel
B. Jean Picard
C. J. Priestley
D. Newton

A. Issac Newton
B. Albert Einstein
C. Gahieo Galilei
D. Michael Faraday

A. 60,00,000°C
B. 6,000°C
C. 60°C
D. 0°C

A. Mercury
B. Venus
C. Mars
D. Jupiter

A. Rebelais
B. Francis Bacorr
C. Gutenberg
D. Kepler