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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 diffraction

B reflection

C polarization

D scattering

A bright fringes are wider than dark fringes

B dark fringes are wider than bright fringe

C both dark and bright fringes are of equal width

D central fringes are brighter than the outer fringes

A alternate dark and bright fringes will be seen

B coloured fringes will be seen

C no interference fringes will be seen

D impossible to predict

A polarization

B constructive interference

C destructive interference

D diffraction

A light form fluorescent tube

B light form neon lamp

C light form sodium lamp

D light form simple lamp

A a cylindrical wave front

B an elliptical wave front

C a spherical wave front

D a plane wave front

A reflection

B refraction

C diffraction

D polarization

A Hertz

B Fresnel

C Einstein

D Plank

A velocity

B wavelength

C amplitude

D frequency

A interference fringes only

B diffraction fringes only

C both interference and diffraction fringes

D polirized frringes

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The blue colour of the sky is due to___________________?

In an interference pattern______________________?

In Young double slit experiment, if white light is used____________________?

When crest of one wave falls over the trough of the other wave this phenomenon is known as________________?

Which one of the following is nearly monochromatic light ?

A point source of light placed in a homogeneous medium gives rise to ___________________?

Longitudinal waves do not exhibit _____________________?

Photoelectric effect was given by ____________________?

Which one of the following properties of light does not change with the nature of the medium ?

In double slit experiment we observe _____________________?