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Start learning 50% faster. Sign in nowVenezuela and Libya have been suspended from voting in the UN General Assembly for the third time in three years. This is because of millions of dollars in unpaid dues to United Nations.
Tungsten is used for the manufacture of the filament of an electric bulb, because –
Which of the following electromagnetic waves are used for detection like Geiger tubes?
Which of the following is not a vector quantity?
The polarization of electromagnetic waves demonstrates that they are:
The threshold wavelength for a photoelectric surface is 540 nm. Will a light of energy 2.5 eV cause photoemission?
Going from fluorine to chlorine, to bromine and then to iodine, the electro negativity:
Which of the following is an example of a non-renewable source of energy?
For a non-relativistic particle, the ratio of phase velocity to group velocity of de Broglie waves is:
Which physical quantity has unit “Joule/second”?
The balance point in a potentiometer for a cell of emf 1.5 V is 60 cm. If a resistance of 5 Ω is connected in parallel with the cell and the new balanc...