Name the part of the eye which controls the amount of light entering the eye.
A) cornea
B) iris
C) pupil
D) retina
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Name the most harmful radiation entering the Earth’s atmosphere from the outer space.
Ultraviolet radiation.
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Name the liquid between the cornea and eye lens of the eye.
Correct option is A) pupil
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Name the part of the eye which is a hole in the middle of the iris …………………
Correct option is C) iris
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The part of the eye sensitive to light is ……………………….
Correct option is A) retina
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Which part of the human eye contains “rods” and “cones” to receive the light signals?
Correct option is D) retina
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The aperture controlling the amount of light entering the eye is called
Correct option is C) Pupil
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The part which controls anger, pain, etc., is ……
(B) Diencephalon
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The part which controls pituitary gland in brain :
D) Hypothalamus
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In human beings DNA controls the characters whereas in viruses ………….. controls the character.
Answer is (A) RNA
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On certain amount simple interest is 16/25th part of the amount taken then the time and rate of interest is ……………….. (Numerically same)
Correct option is (A) 8 Let the amount taken be Rs P. \(\therefore\) S.I. = \(\frac{16}{25}\times\) P = \(\frac{16P}{25}\) R = T \(\therefore\) S.I. = \(\frac{PRT}{100}\) \(\Rightarrow\) \(\frac{16P}{25}\) = \(\frac{P\times R\times R}{100}\) \((\because\) R = T) \(\Rightarrow\) \(R^2=\) \(\frac{16P}{25}\times\frac{100}P\) \(=16\times4=64=8^2\) \(\Rightarrow\) R = 8 \(\Rightarrow\) T = R = 8
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