How many fringes will pass a reference point if the moveable mirror of a Michelson s interferometer is moved 0.06 mm The wavelength of light used is 5.89 x10-3 mm
If the acceleration due to gravity is 10 ms-2 and the units of length and time are changed to kilometer and hour respectively,the numerical value of acceleration is
The displacement time graph for the two particles A and B are straight lines inclined at 60° and 30° with the same axis.The ratio of the velocity of B is
If a light of λ = 588 nm falls on half silvered glass plate in Michelson s interferometer if movable mirror is moved through 0.233 mm the number of fringes will be observed to shift
A bullet of mass 10 g hits a target and penetrates 2 cm into it.If the average friction offered by the target is 100 N,then the velocity with which the bullet hits the target is
In a hydroelectric power station, the height of the dam is 10 m. How many kg of water must fall per second on the blades of a turbine in order to generate 1 MW of electrical power ? Take g = 10 ms-2
For a system to transmit thousands of telephones conversations, several television programs and numerous data signals, it need the following number so threads of optical fibre
A compound X has all of the properties below. It is a liquid at 25°C it mixes completely with water it reaets with aqueous sodium hydroxide, What could X be?
Lipids are naturally occurring compounds produced in cell and are water insoluble but soluble in organic solvent one of the following is not a lipid, Select among the following:
The reduction potentials of non-metals are A =+0.54V, B=+1.08V, C=+1.36V. D= +2.87V Which non -metal can displace all other from aqucous solution of their salts
In many countries plastic waste is collected separetaly and sorted.Some of this is incinerated to provide heat for power stations. Why is pvc polyvinylchloride,removed from any waste that is to be incinerated?
When equal proportion of DH3_ l and C2H5 ___ l are treated with Na metal in preasence4 of dry ether, the number of possible hydrocarbons obtained will be:
An excess af silver nitrate is added to the aqueous barium chloride and the precipitate is removed by filtration. What are the main ions in the filtrate?
Triploblastic, unsegmented, acoelomates exhibiting bilateral symmetry and reproducing both asexually and sexually, with some parasitic forms are included in
Because Inspector Mumtaz could not contain his scorn for the police commissioner, he was imprudent enough to make ______ remarks about his superior officer
When great Britain declared war on Germany in 1914, many people expected lloyd george to resign because his _____ tendencies make him an unsuitable leader during a time of conflict.
The newest fiber optic cables that carry telephone calls cross. country are made of glass so ______ that a piece 100 miles thick is clearer than a standard windowpane
