Related Questions

The surface of a certain planet reflects 80 percent of the light that strikes it. The clouds around the planet then absorb 40 percent of the reflected light. What percent of the light that strikes the planet is reflected from the surface and passes through the clouds without being absorbed?
A 32%
B 40%
C 48%
D 60%
Which planet is known as the 'Red Planet'?
A Mercury
B Venus
C Earth
D Mars
E Jupiter
There are 87 balls in a jar. Each ball is painted with at least one of two colors, red or green. It is observed that 2/7 of the balls that have red color also have green color, while 3/7 of the balls that have green color also have red color. what fraction of the balls in the jar has both red and green colors?
A 6/14
B 2/7
C 6/35
D 6/29
তড়িৎ রাসায়নিক কোষের emf = ?i.E0Anodee(ox)+E0cathode(Red)ii.E0cathode(Red)-E0Anodee(Red)iii.E0Anodee(ox)-E0cathode(Red)কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i, ii ও iii
তড়িৎ রাসায়নিক কোষের emf = ?i. E° Anode(ox) + E°Cathode (Red) 11. E Cathode(Red) - E°Anode (Red) 111. E° Anode(ox) - E°Cathode (Red) নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i, ii ও iii
Which planet is known as the 'Watery Planet' ?
A Mercury
B Earth
C Mars
D Jupiter
A jar contains only marbles of three colors : red, green and yellow. The red and green marbles are in the ratio of 2 : 5 and the yellow and red marbles are in ratio of 5 : 6. which of the following could be the total number of marbles?
A 52
B 64
C 100
D None of these
When red is X, green is Y, when green is not Y blue is Z. But the is never Z as long as red is red is X. which of the following statements is trued in this context?
A while blue is Z, green is Y
B While red is not X, blue is not Z
C while green in not y, red is not X
D None of the above
When red is X, green is Y, When green is not Y, blue is Z, but the is never Z as long as red is red is X. Which of the following statements is true in this context?
A While blue is z, green Y
B While red not X, blue is not Z
C While green is not Y, red is not X
D None of the above
A jar contains 10 red marbles and 30 green marbles . How many red marbles must be added to the jar so that 60% of the marbles will be red ?
A 25
B 35
C 40
D 60

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