Suppose the focal length is f = -100 cm the object distance is so= 400 cm the object is 5cm tall How tall is the image? (answer is in units of cm but do not include the units when answering)
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- When light from this 2cm tall flower passes through the lens, it creates a 1.5cm tall image. Original Object f Image on Screen What can we calculate about this image?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 placed 40 cm in front of a thin lens. If an image forms at a distance 120 cm from the lens, on the opposite side as the object, what is the focal length of the lens, in cm? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
- A convex mirror with a radius of curvature of -30.0 cm is used to form an image of an arrow that is 13.6 cm away from the mirror. If the arrow is 2.10 cm tall and inverted (pointing below the optical axis), what is the height of the arrow's image? (Include the sign of the value in your answer.) cmd = 2 / 4 | f = -4cm 2. The figure shows a diverging mirror with a focal length of -4cm. An object is 4cm to the left of the mirror and is 2cm tall. object b. Find the magnification of the image. c. Find the height h, of the image. makada wa k ho h₂ = a. a. Fill in the blanks above, and find d, the image-to-lens distance. समयमा 67% + @ matatatata ਲਈ ਲੋਕ ਅ daripada diverging mirror SEMUA ALLERGO heen Ladk STREET PERSE ASTERSUN dime APRESEN Ename E Para 6 d. Draw the focal point(s) of this mirror on the picture above. e. Draw the image above at the correct location and with the correct size & orientation.An image is formed using a convex lens, the image being 15 cm past the lens. A second lers is placed 25 cm past the first lens and another image is formed, this time 10 cm past the second lens. Which of the following statements is true? The last image is inverted with regard to the original object, The last image must be larger than the object. The first image is virtual. None of the above statements is true.
- A convex lens has a focal length of 13 cm. A candle with a height of 7 cm is 7 cm away from the lens. Find the location of the image. If the image is real give a positive answer and a virtual image should be a negative answer.A doctor examines a mole with a 15.5 cm focal length magnifying glass held 14.0 cm from the mole. (a) Where is the image? (Enter the image distance in meters. Include the sign of the value in your answer.) m (b) What is its magnification? (c) How big in millimeters is the image of a 5.10 mm diameter mole? mmAn object is placed 27 cm in front of a diverging lens having a focal length of magnitude 65 cm. What is the image distance, in cm
- A doctor examines a mole with a 15.5 cm focal length magnifying glass held 11.0 cm from the mole. (a) Where is the image? (Enter the image distance in meters. Include the sign of the value in your answer.) (b) What is its magnification? (c) How big in millimeters is the image of a 5.20 mm diameter mole? mmUsing a single optic with a positive focal length, an image is created. As a result, which of the following MUST be true? Choose all that apply. The image is real The image is virtual The image is inverted O The image is upright The image distance is positive The image distance is negative The image height is positive The image height is negative The image has a positive magnification The image has a negative magnification The optic is converging The optic is diverging(e) The image becomes smaller. (f) The image is no longer a real image. (g) The image is formed at the right hand focal point.