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%
In order to have a connecting rod equally strong in buckling about X-axis and Y-axis, the moment of inertia about X-axis should be __________ the moment of inertia about Y-axis.
A Equal to
B Twice
C Three times
D Four times
The Earth is tilted on its axis
A 23.5°
B 22.5°
C 21. 5°
D 20°
Two circular discs of same weight and thickness are made from metals having different densities. Which disc will have the larger rotational inertia about its central axis?
A Disc with larger density
B Disc with smaller density
C Both discs will have same rotational inertia
D None of the above
A centrifugal filtration unit operating at a rotational speed of w has inner surface of the liquid (density ρL) located at a radial distance R from the axis of rotation. The thickness of the liquid film is δ and no cake is formed. The initial pressure drop during filtration is
A $$\frac{1}{2}$$w2.R2.ρL
B $$\frac{1}{2}$$w2.δ2.ρL
C $$\frac{1}{2}$$w2.δ.ρL(2R + δ)
D $$\frac{1}{2}$$w2.R.ρL(R + 2δ)
Which is the brightest planet , as viewed from the planet Earth ?
A Moon
B Mercury
C Venu
D Jupiter
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
Which planet is called watery planet?
A Venus
B Earth
C Mars
D Mercury
Which planet is known as the 'Red Planet'?
A Mercury
B Venus
C Earth
D Mars
E Jupiter

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