Question

In: Physics

2A) A convex mirror has radius of curvature of magnitude 20 cm. (I) its focal length...

2A)

A convex mirror has radius of curvature of magnitude 20 cm.

(I) its focal length is + 10 cm

(II) its focal length is – 10 cm

(III) it produces only virtual images.

(IV) it produces only magnified images.

	only IV
	II and III
	I and IV
	only I

2B)

An object is placed 20 cm in front of a concave mirror of radius 50 cm.

(I) the image is formed behind the mirror

(II) the image is inverted

(III) the image is magnified

(IV) the image is real

	II and III
	I and IV
	I and III
	II and IV

2C)

A mirror produces a magnified image. Therefore

(I) it is a concave mirror

(II) it is a virtual image

(III) it is a real image

(IV) the magnitude of magnification is greater than 1

	I and IV
	III and IV
	II and IV
	I and III

2D)

A mirror produces a reduced image. Therefore

(I) the magnification is negative

(II) it cannot be a concave mirror

(III) it cannot be a plane mirror

(IV) it is a convex mirror if the image is upright.

The correct answers are

	III and IV
	I and III
	II and III
	I and II

Expert Solution

genius_generous answered 3 years ago

A convex mirror has a radius of curvature whose magnitude is 43 cm. The mirror is...

A convex mirror has a radius of curvature whose magnitude is 43 cm. The mirror is positioned on a horizontal optical bench with its front surface at 0 cm. A 13.5 cm long fluorescent lamp oriented vertically is placed at +90 cm. What is the focal length of the mirror? Tries 0/5 At what distance from the mirror can we find a sharp image of the lamp? Tries 0/5 How tall is the image of the lamp? Tries 0/5 If...

A convex spherical mirror has a radius of curvature of 9.60 cm. A) Calculate the location...

A convex spherical mirror has a radius of curvature of 9.60 cm. A) Calculate the location of the image formed by an 7.65-mm-tall object whose distance from the mirror is 18.0 cm. Answer in cm. B) Calculate the size of the image. Answer in mm. C) Calculate the location of the image formed by an 7.65-mm-tall object whose distance from the mirror is 10.0 cm. Answer in cm. D) Calculate the size of the image. Answer in mm. E) Calculate...

A convex mirror has a focal length of ?35 cm. Where is the image if the...

A convex mirror has a focal length of ?35 cm. Where is the image if the image is upright and three-fourths the size of the object?

A concave mirror has a focal length of 63.6 cm. (a) What is its radius of...

A concave mirror has a focal length of 63.6 cm. (a) What is its radius of curvature? __________ cm (b) Locate the image when the object distance is 100 cm. (Indicate the side of the mirror with the sign of your answer.) ____________ cm Describe the properties of the image when the object distance is 100 cm. (Select all that apply.) A) real B) virtual C) upright D) inverted (c) Locate the image when the object distance is 10.0 cm....

a) A 4.0 cm -tall object is 15 cm in front of a CONVEX mirror that has a -25 cm focal length.

1. Please complete the following parts of the question regarding optics. a) A 4.0 cm -tall object is 15 cm in front of a CONVEX mirror that has a -25 cm focal length. Calculate the image position then Calculate the image height. Type a positive value if the image is upright and a negative value if it is inverted. b) A 3.0-cm-tall object is 17 cm in front of a CONVERGING lens that has a 32 cm focal length....

A convex mirror has a focal length of -58.0 cm. A 12.0-cm-tall object is located 58.0...

A convex mirror has a focal length of -58.0 cm. A 12.0-cm-tall object is located 58.0 cm in front of this mirror. Determine the (a) location and (b) size of the image.

A meterstick lies along the optical axis of a convex mirror of focal length -48 cm,...

A meterstick lies along the optical axis of a convex mirror of focal length -48 cm, with its nearest end 85 cm from the mirror. How long is the image of the meterstick?

Q3- lens A to be a convex lens with a focal length of 20 cm, lens...

Q3- lens A to be a convex lens with a focal length of 20 cm, lens B is concave lens with focal length of 15 cm a- Calculate and compare the optical powers for lenses A, and B b- Find the combined optical power if the two lenses were cascaded behind each other Q4- Use ray tracing or Lens equation to find the image of an object 1 cm high located at 2 cm away from a convex lens that...

1. If a concave mirror has a focal length of 20 cm, at which object distance...

1. If a concave mirror has a focal length of 20 cm, at which object distance will an image larger than objects be formed on screen? a.) 40 cm b.) 30 cm c.) none of the choices d.) 14 cm e.) 50 cm 2. An electron and proton are projected with the same velocity when a uniform magnetic field perpendicular to the velocity of the two charges is applied. The electron follows a circular path of radius 1 mm. What...

An object is 32cm in front of a convex mirror with a focal length of -19cm...

An object is 32cm in front of a convex mirror with a focal length of -19cm .Locate the image? Is the image upright or inverted? An object is 15cm in front of a concave mirror with a focal length of 22. Locate the image.cm. Is the image upright or inverted?