An object of 20 cm height and at a distance 70 cm from a plane mirror, what are the image characters and size? A. Real, inverted, same size B. Virtual, upright, same size C. Vitrual, inverted, same size D. Real, upright, same size
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An object of 20 cm height and at a distance 70 cm from a plane mirror, what are the image characters and size?
A. Real, inverted, same size
B. Virtual, upright, same size
C. Vitrual, inverted, same size
D. Real, upright, same size
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- A converging lens has a focal length of 40 cm. If an object is placed 50 cm in front of the image, where will the image be formed? A.200 cm to the left side of the lens B.250 cm to the right side of the lens C.150 cm to the left side of the lens D.200 cm to the right side of the lensA person is using a concave make-up mirror to examine a boil that is forming on their face. The boil has already grown to 8 mm in diameter. The person holds the mirror 12 cm from their face to get a magnification of 1.5 What is the size of the mole seen in the mirror? mm. Submit Answer Tries 0/2 Where is the image formed? cm v the mirror. Submit Answer Tries 0/2 in front of behind What is the focal length of this mirror? cm Submit Answer Tries 0/2 The person, disgusted by the giant boil, steps back two paces so that they are now 140 cm away from the mirror. At this distance they now see an image of their entire head formed by the mirror. Where is the image formed? cm v the mirror. Submit Answer Tries 0/2 If their head is 22 cm in size, then The image of the head that is formed by the mirror is cm tall and Submit Answer Tries 0/2The first-order bright region created by a diffraction grating occurs at an angle of 24.0 from the central maximum. The wavelength of light that falls normally onto the grating is 625 nm. Find (a) the number of slits per mm on the grating and (b) the angles of the second-order bright region and the third-order bright region (if any).
- If an object is placed a distance 0.3 meters away from a curved mirror, and the resulting image has a magnification of -5. What can you say about the mirror? A.it is concave B.it is diffuse C.it is convex D.it is flatQ: True of False: When we see a reflected image of something, light rays always emanate from the point where we observe the image to be. Q: Is it possible for a convex mirror to form a real image? Q: You observe that an image in a mirror is upside down in relation to the actual object. Can this image be projected onto a screen?Which of these are characteristics of real images? Select one or more: a. Light rays do not go through real images. b. Real images formed by single lenses or mirrors are always inverted. c. Real images formed by single lenses or mirrors are always upright. d. Light rays go through real images.
- 3. An object is placed at point P in front of a plane mirror as shown in the diagram. How are the magnitudes of the object distance and image distance related to each other? K- O The two distances are equal. O The object distance is twice the image distance. O The image distance is twice the object distance.An object lies outside the focal point of a concave mirror. Which of the following statements about the image formed by this mirror is the most accurate? A. The image is always virtual and upright. B. The image could be real or virtual, depending on how far the object is past the focal point. C. The image could be upright or inverted, depending on how far the object is past the focal point. D. The image is always on the opposite side to the object. E. The image is always real and inverted.I calculated the distance for an object and the height of an object in front of a concave mirror with these variables: Focus= 20.0 cm Distance of object3 50.0 cm Height of object=21.0 cm Answer= distance 33.1 cm and height -13.8 From the above information: -Is the image upside down? -Is the image real or virtual? -Is the image smaller or larger?
- The mirror equation relates the object distance, d0, the image distance, di, and the focal length, f, of a mirror as1 / d0 + 1 / di = 1 / fWhile in other topics, distance and length are strictly non-negative, in optics we introduce the following sign conventions: Object distance is positive for a real object and negative for a virtual object. Image distance is positive for a real image and negative for a virtual image. Focal length is positive for a converging mirror and negative for a diverging mirror (a) Select the best choice to complete this statement. A real object placed in front of a converging mirror creates a real image under all circumstances. under no circumstances. when the object is between the focal point and the mirror. when the object is farther than the focal length from the mirror. (b) Select the best choice to complete this statement. A real object placed in front of a diverging mirror creates a virtual image under all circumstances. under no circumstances.…An object is 15 cm away from a mirror. The mirror has focal length of 30 cm. The image distance is calculated to be? A. - 30 cm B. 30 cm C. - 0.03 cm D. 0.03 cmA spherical mirror creates a picture. The object's magnification is -2.0.. Virtual or real? Is it upright or flipped? Does the mirror have a convex or convex shape In which direction should I look to find the reflection in the mirror?