11th Class Physics MCQS Physical Optics Online Test 2

3-cp-3-e-3-cspan-style-3-d-22-font-size-3-a-16-0-pt-22-3-e-3-cspan-style-3-d-27-font-family-3-a-22-calibri-22-2-c-22-sans-serif-22-27-3-e-3-cspan-style-3-d-22-color-3-ablack-22-3-e-when-the-force-is-parallel-to-the-direction-of-motion-of-the-body-2-c-then-work-done-on-the-body-is-3-c-2-fspan-3-e-3-c-2-fspan-3-e-3-c-2-fspan-3-e-3-c-2-fp-3-e_-_3-cp-3-e-3-cspan-style-3-d-22-font-size-3-a-16-0-pt-22-3-e-3-cspan-style-3-d-27-font-family-3-a-22-calibri-22-2-c-22-sans-serif-22-27-3-e-3-cspan-style-3-d-22-color-3-ablack-22-3-emaximum-3-c-2-fspan-3-e-3-c-2-fspan-3-e-3-c-2-fspan-3-e-3-c-2-fp-3-e,3-cp-3-e-original-sources-of-energy-for-biomass-is-3-a-3-c-2-fp-3-e_-_3-cp-3-e-sun-3-c-2-fp-3-e,3-cp-3-e-the-ballistic-missiles-are-used-only-for-3-a-3-c-2-fp-3-e_-_3-cp-3-e-short-range-3-c-2-fp-3-e,3-cp-3-e-the-frequency-of-rotation-of-a-spaceship-about-its-own-axis-to-create-artificial-gravity-like-that-on-earth-is-3-a-3-c-2-fp-3-e_-_3-cp-3-e-3-cspan-class-3-d-22-math-tex-22-3-e-5-c-5-c-28-f-3-d-5-c-5-cfrac-7-b-1-7-d-7-b-2-5-c-5-cpi-7-d-5-c-5-csqrt-7-b-5-c-5-cfrac-7-bg-7-d-7-br-7-d-7-d-5-c-5-c-29-3-c-2-fspan-3-e-3-c-2-fp-3-e,3-cp-3-e-the-s-i-unit-of-angular-momentum-is-3-a-3-c-2-fp-3-e_-_3-cp-3-ekg-m-3-csup-3-e-2-3-c-2-fsup-3-es-3-csup-3-e-1-3-c-2-fsup-3-e-3-c-2-fp-3-e,3-cp-3-e-the-unit-of-rotational-k-e-is-3-a-3-c-2-fp-3-e_-_3-cp-3-ej-3-c-2-fp-3-e,3-cp-3-e-two-unit-vectors-are-inclined-at-90-3-csup-3-eo-3-c-2-fsup-3-e-then-magnitude-of-resultant-is-3-a-3-c-2-fp-3-e_-_3-cp-3-e-3-cspan-class-3-d-22-math-tex-22-3-e-5-c-5-c-28-5-c-5-csqrt-7-b-2-7-d-5-c-5-c-29-3-c-2-fspan-3-e-3-c-2-fp-3-e,3-cp-3-e-which-is-a-base-quantity-3-f-3-c-2-fp-3-e_-_3-cp-3-e-time-3-c-2-fp-3-e,3-cp-3-ea-ball-is-dropped-from-rest-position-from-a-high-tower-the-distance-covered-by-it-in-2-seconds-during-freely-falling-is-3-a-3-c-2-fp-3-e_-_3-cp-3-e-19-6-m-3-c-2-fp-3-e,3-cp-style-3-d-22-text-align-3-ajustify-22-3-e-3-cspan-style-3-d-22-font-size-3-a-11-0-pt-22-3-e-3-cspan-style-3-d-27-font-family-3-a-22-arial-22-2-c-22-sans-serif-22-27-3-e-the-resolving-power-of-a-compound-microscope-increases-when-we-use-3-a-3-c-2-fspan-3-e-3-c-2-fspan-3-e-3-c-2-fp-3-e_-_3-cp-3-e-3-cspan-style-3-d-22-font-size-3-a-11-0-pt-22-3-e-3-cspan-style-3-d-27-font-family-3-a-22-arial-22-2-c-22-sans-serif-22-27-3-e-blue-light-3-c-2-fspan-3-e-3-c-2-fspan-3-e-3-c-2-fp-3-e,a-diffraction-grating-has-500-lines-per-mm-its-spacing-or-grating-element-will-be-equal-to-3-a_-_2-c-3-97-10-3-csup-3-e-3-3-c-2-fsup-3-e-mm,a-glass-grating-has-5000-lines-2-fcm-then-grating-element-will-be-3-a_-_5-c-282-09-imes-10-5-e-7-b-6-7-d-5-c-2-cm-5-c-29,a-light-ray-travelling-from-rare-to-denser-medium-suffer-a-phase-change-of-3-a_-_180-3-csup-3-eo-3-c-2-fsup-3-e,a-ray-of-light-26-nbsp-3-bshows-the-direction-of-propagation-of-light-it-is-line-which-is-3-a_-_normal-to-the-wavefront,a-typical-diffraction-grating-has-certain-number-of-lines-per-centimeter-whose-range-is-3-a_-_400-to-5000,according-to-hygen-e-2-80-99-s-principle-2-c-each-point-on-a-wave-front-acts-as-a-source-of-3-a_-_secondary-wavelet,an-oil-film-on-water-surface-shows-colour-due-to-3-a_-_interference,angle-between-ray-of-light-and-wave-front-is-3-a_-_5-c-2890-5-eo-5-c-29,angle-between-ray-of-light-and-wave-front-is-3-a_-_90-c-2-b-0,bending-of-light-around-the-edges-of-an-obstacle-is-called-3-a_-_diffraction,which-of-the-followings-cannot-produce-colours-with-white-light-3-f_-_polarization