The far point of human eye with normal vision lies at ………………..
A) 25 cm
B) 20 cm
C) 0 cm
D) infinity
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The range of vision for a young adult with normal vision ……………………..
C) 25 cm to infinity
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The value of focal length of the eye lens when the object is between infinity and the point of least distance of distinct vision is ……………………
D) between 2.27 cm to 2.50 cm
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For normal vision the far point is ……………….
D) at infinity
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For myopic eye the far point lies ………………………
B) between 25 cm and infinity
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For hypermetropic eye the far point lies...............
C) at infinity
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For a myopic eye the image is formed ………………. when the object is placed beyond the far point.
B) before the retina
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For a hypermetropic eye the image is formed……………., when the object is placed between near point and point of least distance of distinct vision.
C) beyond the retina
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Far point of a person is 5 m. In order to have normal vision what kind of spectacles should he use ?
A) Concave lens with focal length 5 m
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If the point (x1 , y1 ) lies in Q and the point (X2 , y2 ) lies in Q then (x1 y2 ) lies in
Correct option is (D) Q3 \(\because\) \((x_1,y_1)\) lies in \(Q_2\) \(\therefore\) \(x_1<0\) & \(y_1>0\) Also given that \((x_2,y_2)\) lies in \(Q_3.\) \(\therefore\) \(x_2<0\), \(y_2<0\) \(\because\) \(x_1<0\) & \(y_2<0\) \(\therefore\) \((x_1,y_2)\) lies in \(Q_3\)
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If z = x + iy and |z – zi| = 1, then (A) z lies on X-axis (B) z lies on Y-axis (C) z lies on a rectangle (D) z lies on a circle
(D) z lies on a circle |z – zi | = |z| |1 – i| = 1 \(\therefore\) |z| = 1/√2 \(\therefore\) x2 + y2 = 1/2
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