General Knowledge - Physics - Discussion
Discussion Forum : Physics - Section 1 (Q.No. 9)
9.
Light from the Sun reaches us in nearly
Discussion:
14 comments Page 1 of 2.
Lokesh kumar said:
1 decade ago
Light from the sun reaches the earth in 1 minute.
(1)
Mahesh Verma said:
1 decade ago
Speed of light = 3x10^8 m/s.
Distance between the earth & the Sun is = 150000000 KM.
So the time taken by light to cover this.
Distance is = 150000000000 m/3x10^8 m/s => 500 sec. /60 => 8 min. 20 sec.
Distance between the earth & the Sun is = 150000000 KM.
So the time taken by light to cover this.
Distance is = 150000000000 m/3x10^8 m/s => 500 sec. /60 => 8 min. 20 sec.
Shashwat tripathi said:
1 decade ago
The time taken by sunlight to reach earth is 8 min. 16 sec.
Sanjaya Kumar Tunga said:
1 decade ago
Distance of sun from earth = 150,000,000 km
Speed of light = 3,00,000 km/sec = 18,000,000km/minute
So time taken by sunlight to reach earth = (150,000,000 / 18,000,000) minute = 8.3 min
Speed of light = 3,00,000 km/sec = 18,000,000km/minute
So time taken by sunlight to reach earth = (150,000,000 / 18,000,000) minute = 8.3 min
Manu said:
1 decade ago
The sunling is very powerful and very long from our eyesight, that's why much time to reach the light from here.
Tamanna kochar said:
1 decade ago
Delay is due to difference in densities of layers. i.e., when sun rises at horizon its rays gets somewhat deflected due to which they have to cover more area to reach our eyes.
Nitesh namdev said:
1 decade ago
Distance of sun from earth = 150,000,000 km.
Speed of light = 3,00,000 km/sec = 18,000,000 km/minute.
So time taken by sunlight to reach earth = (150,000,000 / 18,000,000) minute = 8.3 min.
Speed of light = 3,00,000 km/sec = 18,000,000 km/minute.
So time taken by sunlight to reach earth = (150,000,000 / 18,000,000) minute = 8.3 min.
Payal said:
1 decade ago
Distance b/w Earth & Sun [D]= 15*10^7 km.
Speed of light in vacuum [v]= 3*10^8 km/sec.
Let time taken by sunlight to reach earth = T.
We know that,
V=D/T or T=D/V.
That means T=15*10^7 / 3*10^8.
= 5*10^-1 sec or 5*10^-1/60 min.
= 8.3 min.
Speed of light in vacuum [v]= 3*10^8 km/sec.
Let time taken by sunlight to reach earth = T.
We know that,
V=D/T or T=D/V.
That means T=15*10^7 / 3*10^8.
= 5*10^-1 sec or 5*10^-1/60 min.
= 8.3 min.
Alamthegreat said:
1 decade ago
The light of sun reaches earth exactly at 9 minutes 19 seconds. It has increased because the light energy has decreased so it take more time reach now.
Abd'Raheem zainab said:
10 years ago
So will the light energy continue to decrease? If so where are we heading to on this earth?
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