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WorksheetsMASTER MINDS (QUALIFYING ROUND)
Total questions: 10
Worksheet time: 2mins
The coil in a heater is made of?
Tungsten
Nichrome
Iron
Copper
Which of the following cannot be emitted by radioactive substances during their decay?
Electrons
Neutrons
Protons
Helium
When light passes from one medium to another medium, which one of the following does not change?
Frequency
Wavelength
Velocity
Intensity
Who developed the atom bomb?
Robert Opan Heemar
Bernor Bon Bron
Adberd Taylor
Samual Cohen
Which one of the following phenomena shows particle nature of light?
Photo electric effecT
Interference
Refraction
Polarisation
Pa (Pascal) is the unit of
The wavelength of He-Ne laser is :
630nm
632.8nm
640nm
700nm
In an optical fibre:
refractive index of core and cladding are same
refractive index of cladding is greater than that of core
refractive index of core is greater than that of cladding
none of above
The ferromagnetic materials are :
Weakly repelled by magnetic field
Strongly repelled by magnetic field
Strongly attracted by magnetic field
none of the above
