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What is the magnification produced by a lens if the object distance is 25 cm and

Practice Questions

Q1
What is the magnification produced by a lens if the object distance is 25 cm and the image distance is 50 cm?
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  2. 1
  3. 2
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Questions & Step-by-Step Solutions

What is the magnification produced by a lens if the object distance is 25 cm and the image distance is 50 cm?
  • Step 1: Identify the object distance (u) and the image distance (v). Here, u = 25 cm and v = 50 cm.
  • Step 2: Use the magnification formula, which is m = -v/u.
  • Step 3: Substitute the values into the formula: m = -50/25.
  • Step 4: Calculate the magnification: -50 divided by 25 equals -2.
  • Step 5: The negative sign indicates the image is inverted. The absolute value of -2 means the image is twice the size of the object.
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