Heavy and light objects are released from same height near the Earth’s surface. What can we conclude about their acceleration?

Correct Answer - D `(d)` We can take `0` indentical and `n` distinct , `1` identical and `n-1` distinct , `2` identical and `n-2` distinct and so on… `:.` Total no....

Correct Answer - B `(b)` Division of objects can be `(0,1,4)` or `(0,2,3)` So total number of distribution ways `=(5!)/(0!*1!*4!)xx3!+(5!)/(0!*2!*3!)xx3!` `=30+60=90` ways

Correct Answer - (a) `1.5`D(convex), (b) `0.33`D(concave), with reading glasses he can see clearly from 25 cm to `54.5` cn and with distant glasses from 46 cm to infinity

When released from certain height, objects tend to fall vertically downwards because of the gravitational force exerted by the Earth.

Correct Answer - `1/2 mgR`

Correct Answer - `a=2.4 m//s^(2)`

Correct option is: (A) 2.5 m/s2

Correct option is: (D) \(\frac{3g}{4\pi RG}\)

B) hypermetropia

u = 5\(\hat i-3\hat k\) t = 5 a = -1.6 \(\hat k\) using equation v = u + at v = 5\(\hat j\) - 3\(\hat k\) + (-1.6\(\hat k\))5 v = 5\(\hat j\) - 3\(\hat k\) - 8\(\hat k\) v =...