Question

The image shows a dust mite as seen under a microscope. The scale of the drawing to dust is 100:1

Answer 1

The actual length of the dust termite observed under the microscope is 1.5 mm

• The scale of image produced under the microscope 100 : 1

• This means image is magnified 100 times its original size as microscopes are used to enlarge or magnify the size objects.

• Taking the measured size of the dust termite under the microscope in millimeter = 150 mm

The actual length of the termite will be :

• Measured size under microscope ÷ 100

• 150 mm ÷ 100

• 1.5 mm

Therefore, the actual length of the dust termite is about 1.5 mm

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