11th Class Physics MCQS Optical Instruments Online Test 2

3-cp-3-e-if-a-body-of-mass-5-kg-is-raised-vertically-through-a-distance-of-1-m-2-c-then-work-done-is-3-a-3-c-2-fp-3-e_-_3-cp-3-e-49-j-3-c-2-fp-3-e,3-cp-3-e-if-a-string-vibrates-in-four-segments-at-a-frequency-of-120-hz-2-c-its-fundamental-frequency-will-be-5-c-5-c-3-a-3-c-2-fp-3-e_-_3-cp-3-e-30-hz-3-c-2-fp-3-e,3-cp-3-e-the-mass-of-earth-is-equal-to-3-a-3-c-2-fp-3-e_-_3-cp-3-e-6-c-3-97-10-3-csup-3-e-24-3-c-2-fsup-3-e-kg-3-c-2-fp-3-e,3-cp-3-e-the-minimum-number-of-communication-satellites-required-to-cover-whole-earth-is-3-a-3-c-2-fp-3-e_-_3-cp-3-e-3-3-c-2-fp-3-e,3-cp-3-e-two-waves-of-same-frequency-and-moving-in-the-same-direction-produces-5-c-5-c-3-a-3-c-2-fp-3-e_-_3-cp-3-e-interference-3-c-2-fp-3-e,3-cp-3-e-when-the-values-of-average-and-instantaneous-acceleration-are-equal-2-c-the-is-said-to-be-moving-with-3-a-3-c-2-fp-3-e_-_3-cp-3-epositive-acceleration-3-c-2-fp-3-e,3-cp-3-ea-body-will-be-in-translational-equilibrium-2-c-if-3-a-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-calibri-22-2-c-22-sans-serif-22-27-3-e-e-2-88-91-3-cem-3-e-3-cu-3-ef-3-c-2-fu-3-e-3-c-2-fem-3-e-3-d-0-3-c-2-fspan-3-e-3-c-2-fspan-3-e-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-if-a-wave-travelling-indenser-medium-is-reflected-from-the-boundary-of-rarer-medium-2-c-the-phase-change-in-the-wave-is-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-180-3-csup-3-eo-3-c-2-fsup-3-e-3-c-2-fspan-3-e-3-c-2-fspan-3-e-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-in-michelson-e-2-80-99-s-interferometer-one-fringe-iscount-when-mirror-m-3-csub-3-e-1-3-c-2-fsub-3-e-is-displaced-by-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-class-3-d-22-math-tex-22-3-e-5-c-5-c-28-5-c-5-cfrac-7-b-5-c-5-clambda-7-d-7-b-2-7-d-5-c-5-c-29-3-c-2-fspan-3-e-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-in-the-fundamental-note-2-c-the-distance-between-anode-and-anti-node-is-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-class-3-d-22-math-tex-22-3-e-5-c-5-c-28-l-3-d-5-c-5-cfrac-7-b-5-c-5-clambda-1-7-d-7-b-4-7-d-5-c-5-c-29-3-c-2-fspan-3-e-3-c-2-fp-3-e,a-convex-lens-acts-as-diverging-lens-if-the-object-is-placed-at-3-a_-_within-the-f,a-double-convex-lens-acts-as-a-diverging-lens-when-the-object-is-3-a_-_inside-the-focus,a-layer-over-the-central-core-of-the-jacket-is-called-3-a_-_cladding,a-spectrometer-is-used-to-study-3-a_-_spectrum,a-telescope-with-objective-of-focal-length-40-cm-and-eyepiece-of-focal-length-5-cm-2-c-when-focused-for-infinity-has-length-equal-to-3-a_-_45-cm,at-some-angle-of-incident-when-the-angle-of-reflection-become-90-3-csup-3-eo-3-c-2-fsup-3-e-2-c-this-angle-is-called-3-a_-_critical-angle,critical-angle-is-that-angle-of-incident-for-which-angle-of-refraction-is-3-a_-_5-c-2890-5-eo-5-c-29,critical-angle-is-that-incident-angle-in-denser-medium-for-which-angle-of-refraction-is-3-a_-_90-c-2-b-0,digital-modulation-is-expressed-as-3-a_-_bits,fiber-optic-cable-carries-data-in-the-form-of-3-a_-_light,the-resolving-power-of-a-compound-microscope-depends-on-3-a_-_the-position-of-an-observer-e-2-80-99-s-eye-with-regard-to-the-eye-lens,the-units-of-magnifying-power-of-microscope-or-telescope-are-3-a_-_dioptre,which-of-the-following-gives-erect-image-3-f_-_all-the-above