146: Retina in the eyes acts as a ........ in the camera.

(a) Lens

(b) Shutter

(c) Film

(d) None of these
147: 'SWAYAM', an initiative of the Government of India, aims at

(a) promoting the Self Help Groups in rural areas
(b) providing financial and technical assistance to young start-up entrepreneurs
(c) promoting the education and health of adolescent girls
(d) providing affordable and quality education to the citizens for free
148: P is 300 km eastward of O and Q is 400 km north of O. R is exactly in the middle of Q and P. The distance between Q and R is

(a) 250 km
(b) 300 km
(c) 350 km
(d) 250 km multiply root 2
149: There are five books A, B, C, D and E placed on a table. If A is placed below E, C is placed above D, B is placed below A and D is placed above E, then which of the following books touches the surface of the table?

(a) C

(b) B

(c) A

(d) E
150: The song "Amar Sonar Bangla" written during the Swadeshi Movement of India inspired the liberation struggle of Bangladesh. Who wrote this song ?

(a) Rabindranath Tagore
(b) Mukunda Das
(c) Dwijendralal Ray
(d) Rajni Kanta Sen