Related Questions

what happens while the light ray is in the glass block but before it strikes the mirrored surface?
A The frequency of the wayes increases
B The frequency of the waves decreases
C the wavelength of the waves decreases
D The velocity of the waves decreases
The surface of a certain planet reflects 80 percent of the light that strikes it. The clouds around the planet then absorb 40 percent of the reflected light. What percent of the light that strikes the planet is reflected from the surface and passes through the clouds without being absorbed?
A 32%
B 40%
C 48%
D 60%
Pick up the correct statement from the following. A rubber ball when strikes a wall rebounds but a lead ball of same mass and velocity when strikes the same wall, falls down
A Rubber and lead balls undergo equal changes in momentum
B Change in momentum suffered by lead ball is less that of rubber ball
C Momentum of rubber ball is less than that of lead ball
D None of these
Your computer has a mirrored volume and you wish to now install the Recovery Console for future troubleshooting. How do you do this?
A Reinstall Windows, this can only be applied during the installation
B Break the mirror, run X:i386winnt32.exe /cmdcons Reestablish the mirror
C Run X:i386winnt32.exe / cmdcons
D Run the add and remove programs and add the recovery console
E None of above
In distributing milk at a summer camp it is found that a quart of milk will fill either 3 large glass tumblers. How many small glass tumblers can be filled with one large glass tumbler ?
A 11/5
B 7/5
C 5/3
D 7/3
In distributing milk at a summer camp it is found that a quart of milk will fill either 3 large glass tumblers or 5 small lass tumblers. How many small glass tumblers can be filled with one large glass tumbler?
A 11/5
B 7/5
C 5/3
D 7/3
A glass when full of milk, weighs 1 kg. It weighs 0.75 kg when the glass is half full. What is weight of the empty glass?
A 0.25 kg
B 0.35 kg
C 0.40 kg
D 0.50 kg
The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is
A Polyvinyl alcohol
B Polyvinyl acetale
C Polyvinyl butyral
D PVC
When white light passes through a glass prism we get a spectrum on the other side of the prism. In the emergent beam the ray which is deviated least is
A the violet ray
B the red ray
C the green ray
D the blue ray
When a ray of light enters a glass slab, then
A only the frequency change
B frequency and velocity change
C frequency does not change
D frequency and wavelength change

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