"A good LCD screen of a computer has a rating of 250 nit." Explain the meaning of this station .

The floor of a rectangular hall has a perimeter 250 m. If the cost of painting the four walls at the rate of Rs 10 per m^2 is Rs 15000, find the height of the hall.

A long solenoid of length 1 m, cross sectional area 10 cm^2 , having 1000 turns has wound about its centre a small coil of 20 turns. Compute the mutual inductance of the two circuits. What is e.m.f. in the coil when the current in the solenoid chanages at the rate of 10 As^-1 ?

Explain with examples the meaning of the terms average rate and instantaneous rate of the reaction.

One method of prodocing two in - phase point sources of light for interference is to form two images of a point source by means of the two halves of a lens,which has been split along a diameter[Fig.6.17]. A screen placed perpendicular tot he principal axis and 80 cm from the mage sources.What is the width of central maxima formed on the screen,if the wavelength of the light used is 5.4 xx 10^(-5) cm ?

An electric oven of 2k W power rating is operated in a domestic electric circuit (220 V) That has current rating of 5 a. What result do you expect? Explain.

Each of the following terms has some anatomical significance. What do these terms mean? Explain with the help of line diagram Secondary wall

Each of the following terms has some anatomical significance. What do these terms mean? Explain with the help of line diagram Middle lamella