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The 12th National Organ Donation Day is observed annually on 27 November and it is celebrated for 10 years. The day aims to promote awareness and recognize the selfless contribution made by deceased donors to healthcare and mankind re-instill our faith in humanity.
A coil with N turns and area A is placed in a magnetic field varying as B = B₀·e–αt. What is the induced EMF at time t = 0?
‘Lubb-dupp’ sound is produced due to the action of
A spherical ball made of steel when dropped in mercury container will –
A force of 50 N moves a body 2 meters in the direction of the force. Find work done.
Rain drops acquire spherical shape due to -
In a convex lens, when the object is at infinity, then the position of image is ______.
Gamma rays have greatest similarity with –
When heated from 0° to 10°C volume of a given mass of water will -
Two capacitors, 2 µF and 3 µF, are charged separately to 100 V and 50 V respectively, and then connected positive to positive, negative to negative. F...
Which of the following statements is true about energy bands in solids?