Match List I (Industrial processes) with List II (Industry with which associated) and select the correct answer using the codes given below the Lists
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Aluminium surfaces are often ‘anodized’. This means the deposition of a layer of
Aluminium surfaces are often ‘anodized’. This means the deposition of a layer of
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Soft drinks such as colas contain significant quantities of
Soft drinks such as colas contain significant quantities of
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Which one of the following materials is very hard and very ductile
Which one of the following materials is very hard and very ductile ?
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Most of the explosions in mines occur due to the mixing of
Most of the explosions in mines occur due to the mixing of
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The stones formed in human kidney consist mostly of
The stones formed in human kidney consist mostly of
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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) : 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.
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Assertion (A) : A man standing on a completely frictionless surface can propel himself by whistling. Reason (R) : If no external force acts on a system, its momentum cannot change.
Assertion (A) : A man standing on a completely frictionless surface can propel himself by whistling. Reason (R) : If no external force acts on a system, its momentum cannot change.
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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.
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.
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When a CD (Compact Disc used in audio and video systems) is seen in sunlight, rainbow like colours are seen. This can be explained on the basis of the phenomenon of
When a CD (Compact Disc used in audio and video systems) is seen in sunlight, rainbow like colours are seen. This can be explained on the basis of the phenomenon of