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( a ) Name the part of human eye that helps to focus near and distant objects in quick succession. Explain its functioning. ( b ) A person is advised to wear spectacles with concave lenses. What type of defect of vision is1 Answer A person is able to see objects clearly only when these are lying at distances between 50cm and 300cm from his eye. -CBSE physics class 101 AnswerA person needs a lens of power –5.5 dioptres for correcting his distant vision. For correcting his near vision he needs a lens of power +1.5 dioptre. What is the focal length of the lens required for correcting (i) distant vision, and (ii) near vis1 AnswerA person with a myopic eye cannot see objects beyond 1.2 m distinctly. What should be the type of the corrective lens used to restore proper vision? -CBSE Physics2 AnswerDescribe with a ray diagram how a person with myopia can be helped by spectacles. -2005 CBSE Physic class 101 AnswerDescribe with a neat diagram how this defect of vision can be corrected by using a suitable lens. -2008 CBSE Physic class 101 Answer Where will the image be formed by concave mirror when an object is placed between the pole and the focus point of the mirror ? -2005 CBSE Physic class 101 AnswerExplain the following terms used in relation to defects in vision and corrections provided for them -2005 CBSE Physic class 101 AnswerA student used a device (X) to obtain/focus the image of a well illuminated distant building on a screen ( S ) as shown below in the diagram. Select the correct statement about the device (X). CBSE- class10- Science 20151 AnswerWhile determining the focal l ength of a concave mirror, you try to focus the image of a distant object formed by the mirror on the screen. The image formed on that screen, as compared to the object , should be : CBSE class10 Scienc1 AnswerWhich government body supervises the functioning of formal sources of loans in India? Explain its functioning.-cbse-civics-class10-20121 AnswerBut even with my naked eyes’ means ____________________. 1 i it is easy to see far object through telescope ii it is easy to see distant stars iiiwe can spot them easily iv it easy to look without spectacles. (CBSE ENGLISH CLASS 6)1 AnswerDraw a ray diagram to show the -2006 CBSE Physic class 101 AnswerWhich of the following helps Assam type building to remain intact during an earthquake A RCC bands B Tie beam C Frame action D Footing?1 AnswerWhat was Birsas vision of a golden age? Why do you think such a vision appealed to the people of the region? -CBSE Class 8 History NCERT Solutions1 AnswerWhich type of advocate pleads on behalf of the accused person? - CBSE class 8 civics 1 AnswerSO2 and CO adversely affect - gate civil 2017 1 AnswerWhat is the misson vision and the Various schemes of small industries development bank of IndiaSIDBI?2 AnswerA student obtains a sharp image of the distant window (W) of the school laboratory on the screen ( S ) using the given concave mirror (M) to determine its focal length. Which of the following distances should he measure to get the focal 1 AnswerWhat is the maximum temperature attained in a concave reflector type solar cooker? - 2006 CBSE Physic class 101 Answer