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%
A body has a weight W on the surface of Earth. What is its weight on a planet whose mass is 15 times that of Earth and a radius that is 4 times that of the earth?
A 15\/4 W
B 16\/9 W
C 16\/7 W
D 16\/15 W
Which is the brightest planet , as viewed from the planet Earth ?
A Moon
B Mercury
C Venu
D Jupiter
The Timariots Governors and the Revenue Contractors, on their part reason in this manner: "Why should the neglected state of this land create uneasiness in our minds and why should we expend our money and time to render it fruitful? We may be deprived of it in a single moment, and our exertions would benefit neither ourselves nor our children." This statement was made by
A Monserrate
B Tavernier
C Manrique
D Bernier
পৃথিবী পৃষ্ঠে একটি ইটের ওজন 81 N. পৃথিবীর অর্ধেক বাসার্ধের সমান উচ্চতায় এবং অর্ধেক বাসার্ধের সমান গভীরতায় ইউটির উপরে পৃথিবীর অভিকর্ষ বলের মান কত হবে?(A brick weighs 81 N on the surface of the earth. What are the earth's gravitational forces act on it at a height of half of the radius of the earth and at a depth of half of the radius of earth, respectively?)
A 36 N and 81 N
B 36 N and 40.5 N
C 36 N and 20.25 N
D 98 and 40.5 N
E 81 N and 81 N
Which planet in our solar system is nearly as big as the Earth?
A Mercury
B Mars
C Venus
D Pluto
We can receive data either through our television aerial or down our telephone lines and display this data on our television screen. What is the general name given to this process?
A Viewdata
B Teletext
C Telesoftware
D Videotex
E None of the above
A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory . There are 100 seniors, 150 juniors and 200 sophomres who applied. Each senior's junior's name , 2 times; and each sophomres who applied. Each senior's name is placed in the lottery 3 times; each junior's name ,2 times name, 2 times ; and each sphomore's name , 1 time . What is the probability that a senior's name will be chosen?
A 18
B 38
C 48 
D 28
Which planet is considered as the Dwarf planet?
A Earth
B Jupiter
C Pluto
D Saturn
Which planet is known as the 'Watery Planet' ?
A Mercury
B Earth
C Mars
D Jupiter

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