IAS 2000 — Physics

Match List I with List II and select the correct answer using the codes given below the Lists: List I (Institute) | List II (Location) I. Central Institute of Higher Tibetan Studies | A) Hyderabad II. Indira Gandhi Institute of Development Research | B) Mumbai III. National Institute of Mental Health and Neurosciences | C) Bangalore IV. Central Institute of English and Foreign Languages | D) Dharamshala | E) Varanasi

Which one of the following does a TV remote control unit use to operate a TV set?

When a CD (Compact Disc used in audio and video systems) is seen in sunlight, rainbow like colours is seen. This can be explained on the basis of the phenomenon of

For reproducing sound, a CD (Compact Disc) audio player uses a

A ‘black hole’ is a body in space which does not allow any radiation to come out. This property is due to its

Consider the following features of newer models of motor cars: 1. Radial tyres 2. Streamlined body 3. Multipoint fuel injection 4. Catalytic converter with exhaust Which of these features make the newer models of motor cars more fuel efficient?

Assertion (A): Small glass beads fixed on traffic signals glow brightly when light falls upon them. Reason (R): Light is totally reflected when the angle of incidence exceeds a certain critical value and light travelling in a denser medium is reflected from a rarer medium.

Assertion (A): In a motion picture, usually 24 frames are projected every second over the whole length of the film. Reason (R): An image formed on the retina of eye persists for about 0.1 s after the removal of stimulus.

Fluorescent tubes are fitted with a choke. The choke coils

A noise level of 100 decibels would correspond to