NEET (UG) entrance exam Question Bank Solutions for Physics

A series LCR circuit containing 5.0 H inductor, 80 µF capacitor and 40 Ω resistor is connected to 230 V variable frequency ac source. The angular frequencies of the source at which power transferred to the circuit is half the power at the resonant angular frequency are likely to be ______.

According to new Cartesian sign conventions, all the distances are measured from the ______.

In an oscillating system, a restoring force is a must. In an LC circuit restoring force is provided by ______.

When a charged condenser is allowed to discharge through the inductor the electrical oscillations are produced called ______

Two drops of equal size are falling vertically through the air with a constant terminal velocity of 0.15 cm/s. What should be the velocity, if these drops coalesce to form one drop? 

The maximum average velocity of water in a tube of diameter 2 cm so that the flow becomes laminar is (The viscosity of water is 10⁻³ Nm⁻² s¹)

In a series LCR circuit, the net reactance at resonance should be ______

Q-factor can be increased by having a coil of ______.

A lens of large focal length and large aperture is best suited as an objective of an astronomical telescope since ______.

If Reynold's number is greater than 3000, the flow of liquid is: 

The number of nuclei undergoing the decay per unit time is

If half life of a radioactive element is 3 hours after 27 hours it activity becomes ______.

A radioactive nucleus can decay by two different processes. The half-life for the first process is t₁ and that for the second process is t₂ then what will be the effective half-life t of the nucleus is ______.

A radioactive nucleus \[\ce{^A_ZX}\] undergoes spontaneous decay in the sequence \[\ce{^A_ZX->_{Z-1}B->_{Z-3}C->_{Z-2}D}\], where Z is the atomic number of element X. The possible decay particles in the sequence are ______

A radioactive nucleus \[\ce{^A_ZX}\] undergoes spontaneous decay in the sequence \[\ce{^A_ZX -> _{Z-1 }B -> _{Z-3}C -> _{Z-2}D }\] where Z is the atomic number of element X. The possible decay particles in the sequence are ______.

Which of the following is NOT an example of the application of Bernoulli's principle? 

Dynamic lift caused by spinning is called ______.

The working of venturimeter is based on ______.

Which of the following are suitable for the fusion process?

A concave and convex lens have the same focal length of 20 cm and are placed in contact to form a lens combination. The combination is used to view an object of 5 cm length kept at 20 cm from the lens combination. As compared to the object, the image will be