MCQ 11 MarkOut of these, which one is not a man-made luminous body?A Electric bulbBBurning candleCFirefly $($Jugnu$)$✓ Oil lampAnswerCorrect option: D. Oil lampView full question & answer→
MCQ 21 MarkWhich of the following is a cold source of light?✓Firefly $($Jugnu$)$BTube lightCThe sunDElectric bulbAnswerCorrect option: A. Firefly $($Jugnu$)$View full question & answer→
MCQ 31 MarkWhich is a device to image the sun?APlane mirror✓Pinhole cameraCA straight pipeDGlass slabAnswerCorrect option: B. Pinhole cameraView full question & answer→
MCQ 41 MarkWhich letters of English alphabet will not show lateral inversion?✓$\text{I, O, U}$B$\text{N, Z, X}$C$\text{I, X, E}$D$\text{A, E, I}$AnswerCorrect option: A. $\text{I, O, U}$View full question & answer→
MCQ 51 MarkWhat is lateral inversion?AImage becomes invertedB Image bends laterally✓Right of the object appears left of the imageDAll of these happenAnswerCorrect option: C. Right of the object appears left of the imageView full question & answer→
MCQ 61 MarkBouncing back of light from shining surfaces is called✓ReflectionBRefractionCBendingDDispersionAnswerCorrect option: A. ReflectionView full question & answer→
MCQ 71 MarkWhich is an example of a translucent object?✓A thin sheet of paperBA thin glass slabCA thin iron sheetDAll of theseAnswerCorrect option: A. A thin sheet of paperView full question & answer→
MCQ 81 MarkWhich types of objects do not allow light to pass through them?ATranslucent✓OpaqueCTransparentDPenumbraAnswerCorrect option: B. OpaqueView full question & answer→
MCQ 91 MarkWhen an opaque object comes in the path of light it formsA an image with colours✓shadowCblack and white imageDdepends on the colour of the lightAnswerCorrect option: B. shadowView full question & answer→
MCQ 101 MarkLight travels in✓straight lineBcurved lineCzig$-$zag lineDrandomlyAnswerCorrect option: A. straight lineView full question & answer→