STD 5 Science set 2
1 / 25
1) Paheli observed the shadow of a tree at 8:00a.m., 12:00 noon and 3:00 p.m. which of the following statements is closest to her observation about the shape and size of the shadow?
2 / 25
2) Sun light takes _____ to reach.
3 / 25
3) Which of the following are the results of rectilinear propagation of light?
4 / 25
4) Pinhole camera works on the principle of ______
5 / 25
5) Which gas is primarily responsible for green house effect i.e., global warming?
6 / 25
6) Water fit for drinking is called ?
7 / 25
7) A shadow is formed when _____ object obstructs the path of light.
8 / 25
8) The Taj Mahal is said to be suffering from "Marble Cancer". What is Marble Cancer?
9 / 25
9) What is the percentage of nitrogen in the atmosphere?
10 / 25
10) Which of the following is/are not always necessary to observe a shadow?
11 / 25
11) The control centre of human body is ____.
12 / 25
12) In which layer of the atmosphere is the ozone layer found?
13 / 25
13) Nature and size of the object depend upon -
14 / 25
14) Which of the following cases proves that light travels in straight line?
15 / 25
15) Which layer of the atmosphere absorbs the ultraviolet radiation from the sun?
16 / 25
16) Incomplete burning of petrol or diesel in vehicles creates _____ gas which is very poisonous.
17 / 25
17) Which of the following is the effect of shadows ?
18 / 25
18) Which layer of the atmosphere merges with the space?
19 / 25
19) Which instrument is used to measure atmospheric pressure?
20 / 25
20) A greenhouse gas that absorbs energy and maintains earth's temperature is :
21 / 25
21) Which layer of the atmosphere is closest to the surface of the earth?
22 / 25
22) Which of the following is a true statement?
23 / 25
23) Which gas out of the following is found highest by volume in air ?
24 / 25
24) Raghav placed his red coloured teddy bear and passed a beam of light. What would be his observations related to the shadow?
25 / 25
25) Which gas is needed for burning?
Your score is
The average score is 0%
