Which of the following does not change when light travels from one medium to another? 1) Velocity 2) Wavelength 3) Frequency 4) Refractive index
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The radiations used in the treatment of muscle ache are : 1) infrared 2) microwave 3) UV 4) X-Ray
The first man who placed his foot on the moon is : 1) Leonov 2) Neil Armstrong 3) Michael Collins 4) James Van Allen
The breath test conducted by police to check drunken driver has which one of the following on the filter paper? 1) Potassium dichromate-sulfuric acid 2) Potassium sulfuric acid, permanganate 3) Silica ...
Glucose is converted to ethyl alcohol by the enzyme : 1) maltase 2) invertase 3) zymase 4) diastase