Correct Answer - D
`(d)` `x^(2001)-["^(2001)C_(0)x^(2001)-^(2001)C_(1)x^(2000)*(1)/(2)+^(2001)C_(2)x^(1999)*(1)/(4)...]=0`
`:. ^(2001)C_(1)x^(2000)*(1)/(2)-^(2001)C_(2)x^(1999)*(1)/(4)...=0`
sum of the roots `=^(2001)C_(2)*(1)/(4)*(2)/("^(2000)C_(1))=(2001*2000)/(4*2001)=500`
(a) Distance is overestimated when:-
(i) Light is bad.
(ii) The sun is shining in the observer’s eye.
(iii) The object is small in relation to its surroundings.
(iv) Looking through a valley of...
