271: What does the term Dolby B, or Dolby C printed on tape recorders and other sound system refer to?
(a) Frequency modulated system
(b) Amplitude modulated system
(c) Noise reduction circuit
(d) Both DC and AC power can be used.
272: A ball is dropped from the top of a high building with a constant acceleration of 9.8 m/s2. What will be its velocity after 3 seconds ?
(a) 9.8 m/s
(b) 19.6 m/s
(c) 29.4 m/s
(d) 39.2 m/s
273: Who among the following discovered heavy water?
(a) Joseph Priestley
(b) Heinrich Hertz
(c) H. C. Urey
(d) G. Mendel
274: The Russian traveller who visited the Deccan during the medieval period of Indian history was
(a) Rastyannikov
(b) Shirokov
(c) Pavlov
(d) Nikitin
275: What is the new administrative capital proposed for Myanmar ?
(a) Pyinmana
(b) Myitkyina
(c) Mandalay
(d) Bassein