Three of the following four letter-clusters are alike in a certain way and one is different. Pick the odd one out.
SFWI → S + 4 = W, F + 3 = I GUKX → G + 4 = K, U + 3 = X NDRG → N + 4 = R, D + 3 = G FLKO → F + 4 = J, L + 3 = O
A beam of light consisting of two wavelengths, 600 nm and 420 nm, is used to obtain interference fringes in a Young’s double-slit experiment. Find...
The instrument used to measure the speed of the wind is –
The Pointing vector of electromagnetic waves has the same dimensions as that of:
A porter lifts luggage of 20 kg from the ground and puts it on his head 2 m above the ground. Calculate the work done by him on the luggage (take g = 10...
__________ is the metal used for making the filament of the light bulb.
Ultrasonic waves, propagating through a medium, can be detected by:
Which of the following equations correctly represents the momentum p of a photon of Energy E?
Which one of the following is called a red planet?
A closely wound solenoid 40 cm long has 5 layers of windings of 400 turns each. The diameter of the solenoid is 2 cm. If the current carried is 8.0 A, e...
In the absence of ozone layer, which rays will enter into atmosphere?