Measurements

(a) Speed of light
(b) Stellar distances
(c) Speed of rockets
(d) Speed of acroplanes

(a) 746 watts
(b) 736 watts
(c) 748 watts
(d) 770 watts

(a) Heat
(b) Atmospheric pressure
(c) Current
(d) None of these

(a) Sound waves
(b) Time
(c) Water waves
(d) Colour contrast

(a) 6 metres
(b) 6 feet
(c) 60 feet
(d) 100 cm

(a) Light waves
(b) Ship
(c) Sound waves
(d) Aeroplanes

(a) Anemometer
(b) Ammeter
(c) Voltmeter
(d) Commutator

(a) Mechanical Energy into electrical energy
(b) Heat energy into electrical energy
(c) Magnetic energy into electrical energy
(d) Chemical energy into electrical energy

(a) Sound
(b) Depth
(c) Distance
(d) Frequency

(a) 0.5
(b) 0.62
(c) 0.84
(d) 2.6