Question 1

A lens of focal length 1500 mm is used to project an in image of the sun.If the sun subtends an angle of 0.50$^{\circ}$,what is the diameter of the image?

Accepted Answer

A)  60 mm 
B)  30 mm 
C)  26 mm 
D)  6.5 mm 
E)  13 mm 
A)  60 mm 
B)  30 mm 
C)  26 mm 
D)  6.5 mm 
E)  13 mm

Question 2

A camera with changeable lenses produces an image of an object that is 3.0 mm wide on the film when the 50.0 mm lens is used.When the 135 mm lens is used,how wide is the image of the object on the film?

Accepted Answer

A)  3.0 mm 
B)  85 mm 
C)  4.5 mm 
D)  0.37 mm 
E)  8.1 mm 
A)  3.0 mm 
B)  85 mm 
C)  4.5 mm 
D)  0.37 mm 
E)  8.1 mm

Question 3

A simple magnifier of refractive power 15.0 D is used to observe a beetle on a student's desk.If the image of the beetle is formed at her nearpoint of 25 cm,how large is the image compared to the beetle?

Accepted Answer

A)  4.0 
B)  2.0 
C)  5.9 
D)  1.5 
E)  0.50 
A)  4.0 
B)  2.0 
C)  5.9 
D)  1.5 
E)  0.50

Question 4

What causes spherical aberration?

Accepted Answer

A)  the lens surface is not perfectly smooth 
B)  the outer edges of the lens produce a focus at a different point than the central rays 
C)  light is an electromagnetic wave with intrinsic diffraction properties 
D)  the absorption of light in the glass is a function of wavelength 
A)  the lens surface is not perfectly smooth 
B)  the outer edges of the lens produce a focus at a different point than the central rays 
C)  light is an electromagnetic wave with intrinsic diffraction properties 
D)  the absorption of light in the glass is a function of wavelength

Question 5

A simple magnifier of refractive power 15.0 D is used to observe a beetle on a student's desk.If the image of the beetle is formed at her nearpoint of 25 cm,how far is the beetle from the magnifier?

Accepted Answer

A)  50 cm 
B)  6.3 cm 
C)  4.2 cm 
D)  17 cm 
A)  50 cm 
B)  6.3 cm 
C)  4.2 cm 
D)  17 cm

Question 6

For maximum angular magnification of a compound microscope,the objective focal length (fo)and the eyepiece focal length (fe)should be chosen so that

Accepted Answer

A)  fo and fe are the largest available. 
B)  fo and fe are the smallest available. 
C)  fo is the smallest available -fe is the smallest available. 
D)  fo is the largest available -fe is the smallest available. 
A)  fo and fe are the largest available. 
B)  fo and fe are the smallest available. 
C)  fo is the smallest available -fe is the smallest available. 
D)  fo is the largest available -fe is the smallest available.

Question 7

An astronomical telescope operates at 100 power using a 2.00 cm eyepiece.How long is the barrel of the telescope?

Accepted Answer

A)  52.0 cm 
B)  100 cm 
C)  102 cm 
D)  200 cm 
E)  202 cm 
A)  52.0 cm 
B)  100 cm 
C)  102 cm 
D)  200 cm 
E)  202 cm

Question 8

Two lenses,the first with focal length 10.0 cm and the second with focal length -12.5 cm,are separated by 20.0 cm.An object,2.40 cm tall,is 15.0 cm in front of the first lens.What is the size of the final image?

Accepted Answer

A)  2.40 cm 
B)  4.80 cm 
C)  12.4 cm 
D)  24.0 cm 
E)  0.96 cm 
A)  2.40 cm 
B)  4.80 cm 
C)  12.4 cm 
D)  24.0 cm 
E)  0.96 cm

A lens of focal length 1500 mm is used to project an in image of the sun.If the sun subtends an angle of 0.50 $^{\circ}$ ,what is the diameter of the image?

A camera with changeable lenses produces an image of an object that is 3.0 mm wide on the film when the 50.0 mm lens is used.When the 135 mm lens is used,how wide is the image of the object on the film?

A simple magnifier of refractive power 15.0 D is used to observe a beetle on a student's desk.If the image of the beetle is formed at her nearpoint of 25 cm,how large is the image compared to the beetle?

What causes spherical aberration?

A simple magnifier of refractive power 15.0 D is used to observe a beetle on a student's desk.If the image of the beetle is formed at her nearpoint of 25 cm,how far is the beetle from the magnifier?

For maximum angular magnification of a compound microscope,the objective focal length (f_o)and the eyepiece focal length (f_e)should be chosen so that

An astronomical telescope operates at 100 power using a 2.00 cm eyepiece.How long is the barrel of the telescope?

Two lenses,the first with focal length 10.0 cm and the second with focal length -12.5 cm,are separated by 20.0 cm.An object,2.40 cm tall,is 15.0 cm in front of the first lens.What is the size of the final image?

Introduction

Force

Acceleration and Newtons Second Law of Motion

Motion With Constant Acceleration

Circular Motion

Conservation of Energy

Linear Momentum

Torque and Angular Momentum

Fluids

Elasticity and Oscillations

Waves

Sound

Temperature and the Ideal Gas

Heat

Thermodynamics

Electric Forces and Fields

Electric Potential

Electric Current and Circuits

Magnetic Forces and Fields

Electromagnetic Induction

Alternating Current

Electromagnetic Waves

Reflection and Refraction of Light

Interference and Diffraction

Relativity

Early Quantum Physics and the Photon

Quantum Physics

Nuclear Physics

Particle Physics

Filters

Exam 24: Optical Instruments

A lens of focal length 1500 mm is used to project an in image of the sun.If the sun subtends an angle of 0.50 ∘^{\circ}∘ ,what is the diameter of the image?

A camera with changeable lenses produces an image of an object that is 3.0 mm wide on the film when the 50.0 mm lens is used.When the 135 mm lens is used,how wide is the image of the object on the film?

A simple magnifier of refractive power 15.0 D is used to observe a beetle on a student's desk.If the image of the beetle is formed at her nearpoint of 25 cm,how large is the image compared to the beetle?

What causes spherical aberration?

A simple magnifier of refractive power 15.0 D is used to observe a beetle on a student's desk.If the image of the beetle is formed at her nearpoint of 25 cm,how far is the beetle from the magnifier?

For maximum angular magnification of a compound microscope,the objective focal length (fo)and the eyepiece focal length (fe)should be chosen so that

An astronomical telescope operates at 100 power using a 2.00 cm eyepiece.How long is the barrel of the telescope?

Two lenses,the first with focal length 10.0 cm and the second with focal length -12.5 cm,are separated by 20.0 cm.An object,2.40 cm tall,is 15.0 cm in front of the first lens.What is the size of the final image?

Introduction

Force

Acceleration and Newtons Second Law of Motion

Motion With Constant Acceleration

Circular Motion

Conservation of Energy

Linear Momentum

Torque and Angular Momentum

Fluids

Elasticity and Oscillations

Waves

Sound

Temperature and the Ideal Gas

Heat

Thermodynamics

Electric Forces and Fields

Electric Potential

Electric Current and Circuits

Magnetic Forces and Fields

Electromagnetic Induction

Alternating Current

Electromagnetic Waves

Reflection and Refraction of Light

Interference and Diffraction

Relativity

Early Quantum Physics and the Photon

Quantum Physics

Nuclear Physics

Particle Physics

Filters

A lens of focal length 1500 mm is used to project an in image of the sun.If the sun subtends an angle of 0.50 $^{\circ}$ ,what is the diameter of the image?

For maximum angular magnification of a compound microscope,the objective focal length (f_o)and the eyepiece focal length (f_e)should be chosen so that