Related Questions

A ladder is resting against a vertical wall and its bottom is 2.5 m away from the wall. If it slips 0.8 m down the wall, then its bottom will move away from the wall by 1.4 m. What is the length of the ladder?
A 6.2 m
B 6.5 m
C 6.8 m
D \7.5 m
Regarding the development of eyeball
A Macular development begins in the fifth month of gestation
B Macular development is not complete until after birth
C Closure of the optic cup begins posteriorly
D The choroid is the first in the body to produce Melanin
E The primary vitreous forms the bulk of the vitreous in developed eye
একটি থলেতে 4 টি সাদা এবং 2 টি কালো বল আছে। অপর একটি থলেতে 3 টি সাদা ও 5 টি কালো বল আছে। যদি প্রত্যেক থলে হতে একটি করে বল উত্তোলন করা হয়, তবে বলদ্বয় সাদা হওয়ার সম্ভাবনা কত? (A bag contains 4 white and 2 black balls. Another bag contains 3 white and 5 black balls. If one ball is drawn from each bag, what is the probability that both balls are white?)
A 4/6
B 3/8
C 1/4
D 3/4
A painter has painted one-third of a rectangular wall which is ten feet high. When he will paint another 75 square feet of that wall, he will have finished three-quarters of the job. What is the length (the horizontal dimension) of the wall?
A 18 feet
B 12 feet
C 10 feet
D 9 feet
A painter has painted one -third of a rectangular wall which is ten feet high. When he will paint another 75 square feet of that wall, he will have finished three-quaters of the job. What is the length (the horizontal dimension) of the wall?
A 18 feet
B 12 feet
C 10 feet
D 9 feet
A painter has painted 1/3 of a rectangular wall that is 12 feet high. When he will paint another 50 square feet of the wall he will have finished 50% of the job. What is the length of the wall?
A 25
B 50
C 15
D 20
A marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is
A 0.25
B 0.50
C 0.75
D 1.0
If ‘H’ is the height of wall between centers of supports, then the effective height of wall where concrete floors have a bearing on wall irrespective of the direction of span will be
A 0.75 H
B 0.85 H
C 1.0 H
D 1.5 H
A glass ball is shot to hit a wall from a point on a smooth floor. If the ball returns back to the point of projection in twice the time taken in reaching the wall, the coefficient of restitution between the glass ball and the wall is
A 0.25
B 0.33
C 0.40
D 0.50
Which part of human eye controls the amount of light entering the eye?
A Pupil
B Iris
C Cornea
D Retina

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