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Physics

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Physics is a core science subject that deals with the study of matter, energy, motion, force, heat, light, electricity, magnetism, and modern physics concepts. It plays a vital role in competitive exams such as PPSC, FPSC, NTS, OTS, KPPSC, BPSC, AJKPSC, CSS, and PMS, where questions test conceptual understanding, numerical problem-solving, and application of laws and formulas.

A 500 mm

B 5 x 10-3 mm

C 2 x 10-5 mm

D 2 x 10-3 mm

A more for a round edge

B less for a round edge

C more for a sharp edge

D less for a sharp edge

A 60°

B 90°

C 180°

D 45°

A diffraction

B dispersion

C interference

D polarization

A Newton

B Michelson

C Huygen

D Young

A same wavelength

B same amplitude of vibration

C same wave length with constant phase difference

D same amplitude and wavelength

A crest

B trough

C wavelength

D wave front

A bright

B dark for large wavelength

C dark

D bright for large wavelength

A waves

B particles

C photons

D it was not his discovery

A 15 minutes

B 10 minutes

C 8 minutes

D 8 minutes 30 seconds

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A diffraction grating has 500 lines per mm. Its slit spacing or grating element will be equal to ____________________?

Diffraction effect is____________________?

A light ray traveling form rarer to denser medium suffers a phase change of__________________?

appearance of colour in thin films is due to ____________________?

The velocity of light was determined accurately by_______________?

Two sources of light are coherent if they emit rays of_______________?

The locus of all points in a medium having the same phase of vibration is called____________________?

Central spot of Newtons rings __________________?

According to Einstein light travels form one place to another in the form of ________________?

Light reaches the earth form sun in nearly____________________?