Symbiosis National Aptitude Test SNAP 2012 Paper

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DIRECTIONS (Qs. 37-40):
Study the pie-chart below to answer these questions. The chart gives the composition of solar radiation.

Total sun rays received in one minute = 3600 units

Question : 37 of 150

Marks: +1, -0

If the human body can withstand a maximum of 9720 units of IR rays when exposed to the sun continuously, then what is the maximum time in minutes that any person could stand in the sun without crossing the threshold limit of IR rays?

Validate

Solution:

For (Qs. 37- 40)
The given pie chart can be tabulated as below:

Ray	% Solar Radiation	Unit received in one minutes
Radiowave	15	540
Alpha Rays	10	360
UV Rays	20	720
IR Rays	10	360
Beta Rays	5	180
Gamma Rays	5	180
X Rays	30	1080
Micro Waves	5	180

Required time =

{9720}/{360}

= 27 minutes

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