2020 MHT-CET PCM SET - 03 — MHT - CET STD 12 Science — Question

If `tan^-1x + tan^-1y = (4pi)/5`, then `cot^-1x + cot^-1y` equals ______.

A child starts running from rest along a circular track of radius r with constant tangential acceleration a. After time the feels that slipping of shoes on the ground has started. The coefficient of friction between shoes and the ground is [g = acceleration due to gravity].

Which among the following complexes is a heteroleptic and cationic in nature?

Two simple pendulums of lengths 1.44 m and 1.96 m start swinging together. After how many vibrations will they again start swinging together?

Which is the gas evolved when carboxylic acids react with strongly electropositive metals (such as Na, K, Ca, Zn)?

Read the following statements and choose the correct option.

Statement I: Desert lizards bask in the sun and absorb heat when their body temperature drops but move into the shade when the ambient temperature starts increasing.

Statement II: Desert lizards evolved physiological adaptations to maintain body temperature.

The maximum speed of a particle in S.H.M. is 'V'. The average speed is ______

Prosthetic groups differ from co-enzymes in that-

What is the density of water vapour at boiling point of water?

Holandric genes are found only in ____________.