Sample Test Physics
A proton was fired towards a positively charged plate located at a distance
As the proton reaches just close to the plate, it stops there. The surface
charge density of the plate is 4 x 10-6 C/m 2
If the proton was fired with the
initial kinetic energy of 85 eV, then what is the value of distance x?
When a paramagnetic substance is placed in a uniform magnetic field, the magnetic field lines
In a single slit diffraction, first minima for red light of wavelength 699 nm coincide with
the first maxima of a colour.
What is the wavelength of the unknown colour?
What would be the possible number of elements if elements with principal quantum numbers 2 greater than 4 did not exist in nature?
Which of the following statements is incorrect with reference to the nuclear forces?
The expression q1 + q2 = 0 signifies that
When we rub a glass rod with silk, then
A material in which electrons are tightly bound and cannot move freely at room temperature is called a/an
Two stones of different masses are thrown vertically upward with same initial velocity. Which one will rise to a greater height?