Which of the waves below has the shortest wavelength?

a. gamma rays
b. X-rays
c. visible light
d. infrared
e. radio


a

Physics & Space Science

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Which of the following materials has the highest dielectric constant?

A. air B. Mylar C. paper D. Pyrex glass E. water

Physics & Space Science

Consider a two-slit interference experiment like the one shown in figure Q3.7b. The distance between adjacent bright spots in the interference pattern on the screen (A) increases, (B) decreases, or (C) remains the same if, The distance between the slits and the screen increases.

A. increases B. decreases C. remains the same

Physics & Space Science

The three principal sources of internal heat of terrestrial planets are

A) conduction, differentiation, and accretion. B) accretion, differentiation, and radioactivity. C) accretion, differentiation, and eruption. D) convection, differentiation, and eruption. E) conduction, convection, and eruption.

Physics & Space Science

A refrigerator has a coefficient of performance of 4 . If the refrigerator absorbs 30 cal of heat from the cold reservoir in each cycle, the heat expelled (in cal) into the heat reservoir is

a. 40.5 b. 37.5 c. 36.5 d. 34.5 e. 22.5

Physics & Space Science