Subject Repository
Physics Mcqs
Showing 321 – 340 of 940 verified multiple choice questions with answers and explanations.
Q321NTS / FPSC / PPSC
A convex lens of focal length f1 and a concave lens of focal length f2 are placed in contact. The focal length of the combination is_____________?
Q322NTS / FPSC / PPSC
If a convex lens of large aperture fails to converge the light rays incident on it to a single point, it is said to suffer from______________?
Q323NTS / FPSC / PPSC
The least distance of distinct vision for a normal eye is_______________?
Q324NTS / FPSC / PPSC
Magnifying power of simple microscope______________?
Q325NTS / FPSC / PPSC
If an object is placed away from 2f of a converging lens then the image will be_______________?
Q328NTS / FPSC / PPSC
The diameter of a lens is called________________?
Q329NTS / FPSC / PPSC
A lens which converges a beam of parallel rays to a point is called______________?
Q330NTS / FPSC / PPSC
Electron moves in the orbit as________________?
Q332NTS / FPSC / PPSC
The energy radiated is directly proportional to the fourth power of Kelvins temperature is________________?
Q333NTS / FPSC / PPSC
For confinement of electron in a box of radius 10-14m the electron, speed should be_____________?
Q334NTS / FPSC / PPSC
The uncertainty in momentum & position is due to its_____________?
Q335NTS / FPSC / PPSC
A three-dimensional image is obtained by________________?
Q336NTS / FPSC / PPSC
In the electron microscope, electric & magnetic fields are used as_______________?
Q337NTS / FPSC / PPSC
In an electron microscope, we use energetic particles because of______________?
Q338NTS / FPSC / PPSC