NEET Test 80...

An athlete throws a discus from rest to a final angular velocity of 15 rad/s in 0.270 s before releasing it. During acceleration, the discus moves a circular arc of radius 0.810 m. The acceleration of the discus before it is released is ___ ms⁻².

A radio transmitter operates at a frequency 880kHz and a power of 10kW. The number of photons emitted per second is:

Protosteles are found in

Which of the following gates serve as building blocks in digital circuits?

Intermediate product of hydrolysis of cyanide is:

Signals for parturition originate from:

A car is moving towards a high cliff. The car driver sounds a horn of frequency f. The reflected sound heard by the driver has a frequency 2f. If v is the velocity of sound, The velocity of the car in the same velocity units will be

Two similar coils are kept mutually perpendicular such that their centres coincide. Find the ratio of the magnetic field due to one coil and the resultant magnetic field through both the coils if the same current is passed.

A person suffering from severe chills and recurring high fever for 3−4 days was diagnosed with malaria. The causative agent is responsible for the secretion of a toxic substance, which ruptures RBCs. This substance is called.

Sodium has body-centered packing. The distance between two nearest atoms is 3.7 A^∘. The lattice parameter is: