You see colors in a rainbow because of
a. interference.
b. diffraction.
c. specular reflection.
d. dispersion.
e. polarization.
d
Physics & Space Science
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A standard candle is
A) a 7-cm-long wax candle. B) a light source of known luminosity. C) another name for a main-sequence star. D) another name for a barred-spiral galaxy.
Physics & Space Science
What is the significance of 8 solar masses in stellar evolution?
What will be an ideal response?
Physics & Space Science
A step-up transformer steps up voltage by ten times. Neglecting slight losses, if 100 W of power go into the primary coil, the power coming from the secondary coil is
A) 1 W. B) 10 W. C) 100 W. D) 1000 W. E) none of the above
Physics & Space Science
The temperature at which a liquid freezes is
A) affected by foreign ions. B) the same temperature at which its solid form melts. C) both of these D) neither of these
Physics & Space Science