Tag: TIFR Previous Year Question Papers Biology PYQ With Answer Key Download

The roasting of cocoa beans or the baking of bread, gives us the flavours and aromas that we savour in these foods. It also produces melanoidins that give the brown […]

What is the molarity of water if its density is 1000kg/m3 (Molar mass of water is 18 g/mol) 55.55 moles 45.46 moles 60.0 moles 40.56 moles The molarity of pure […]

The first 4 harmonics produced by an organ pipe open at both ends are 50Hz, 100Hz, 150Hz and 200Hz. Which of the harmonics will remain once one end of the […]

A particle is performing Brownian motion with a diffusion constant D, and has a half-life of τ. The root mean square distance it will be displaced from its starting position […]

Both ends of an actin fibre of length L are pinned to two parallel surfaces, as shown below. The elasticity modulus is E, and the moment of inertia is I. […]

If the energy and momentum of a ball are E and P, respectively, its velocity will scale as: E/P P/E The correct answer is A) E/P, because for a particle like […]

Our skin is easy to pinch, but very hard to pull apart. Based on this property, which of these curves most likely represents the mechanical properties of skin? A B […]

100 photons, one after the other, are sent to a photon detector that has a quantum efficiency of 0.1. How many times will the detector detect photons? exactly 10 times […]

What happens to the protons in a given sample when an external magnetic field is applied? All protons align with the field All protons align opposite to the field All […]

If the ionisation energy of a hydrogen atom is E. When the electron in a hydrogen atom jumps from the first excited state to the ground state, the energy emitted […]