1601: In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person ?
1. Iris scanning
2. Retinal scanning
3. Voice recognition
Select the correct answer using the code given below:
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3 only
1602: Which one of the following is a very significant aspect of the Champaran Satyagraha?
(a) Active all-India participation of lawyers, students and women in the National Movement
(b) Active involvement of Dalit and Tribal communities of India in the National Movement
(c) Joining of peasant unrest to India's National Movement
(d) Drastic decrease in the cultivation of plantation crops and commercial crops
1603: Barium in a suitable form is administered to patients before an X-ray examination of the stomach, because
(a) barium allows X-rays to pass through the stomach on account of its transparency to X-rays
(b) barium compound, like magnesium sulphate helps in cleaning the stomach before X-ray examination
(c) barium is a good absorber of X-rays and this helps the stomach to appear clearly in contrast with the other regions in the picture
(d) barium salts are white in colour and this helps the stomach to appear clearly in contrast with other regions in the picture
1604: Which of the following crops has the highest photosynthetic activity?
(a) Cotton
(b) Sugarcane
(c) Rice
(d) Wheat
1605: The next number in the series 0, 7, 26, 63 is:
(a) 124
(b) 178
(c) 195
(d) 255