Monochromatic light of wavelength 500 nm is incident normally on a grating. If the third-order maximum of the diffraction pattern is observed at 32.0°, how many total number of maxima can be seen?

A)

5
B)

7
C)

10
D)

11
E)

13


D

Physics & Space Science

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A block slides down a frictionless inclined ramp. If the ramp angle is 17.0° and its length is 30.0 m, find the speed of the block as it reaches the bottom of the ramp, assuming it started sliding from rest at the top

A) 13.1 m/s B) 172 m/s C) 9.26 m/s D) 24.0 m/s

Physics & Space Science

Refer to the graph. The velocity of this object at the start of the motion is

A. negative. B. positive. C. zero (it is not moving). D. It is not possible to tell from the graph

Physics & Space Science

A charge of 5.0 pC is distributed uniformly on a spherical surface (radius = 2.0 cm), and a second charge of ?2.0 pC is distributed uniformly on a concentric spherical surface (radius = 4.0 cm). Determine the magnitude of the electric field 3.0 cm from the center of the two surfaces.

A. 30 N/C B. 50 N/C C. 40 N/C D. 20 N/C E. 70 N/C

Physics & Space Science

Conversion of Units: An American football field, including end zones, is 360 feet long and 160 feet wide. If you needed to describe it for someone in Europe using the metric system, which one of the following quantities would be closest to its area in square meters? (2.54 cm = 1.00 in.)

A. 4920 m2 B. 5350 m2 C. 88.0 m2 D. 12,100 m2 E. 13,200 m2

Physics & Space Science