CTET Science MCQ - General Science

16 Select the incorrect option from the following pairs of disease and its causes.

Polio is cause by the pollovirus which is a highly contagious virus specific to humans

17 The refractive indices of kerosene oil, turpentine oil and water are 1.44, 1.47 and 1.33 respectively. In which of these materials light, travels fastest?

Speed of light in a medium,

speed of light in vaccum and!l is the refractive index of respective medium. Thus, smaller the refractive index higher will be the speed of light. So, from water having least refractive index 1.33. light will travel faster

Choose the correct option of human body parts with its secreted juice

A. Stomach	1. Pancreatic juice
B. Liver	2. Gastric Juice
C. Pancreas	3. Bile Juice
D. Small intestine	4. Intestinal Juice

Codes

A B C D

Stomach secretes gastric juice, liver produce bile juice, Pancreas secrete pancreatic juice and small intestine secrete intestinal juice. So, option (B) is correct

19 'Tsunami' is produced

Tsunami is produce because of higher water waves developed due to earthquake in sea.

20 A cyclist moves from a certain point X and goes round a circle of radius r and reaches at Y. The displacement of cyclist will be

The cyclist covers the semicircular path of radius r. We know that displacement is the shortest distance between two points. For a semicircle shortest path is its diameter. So displacement = 2 r

CTET Science MCQ - General Science

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