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Worksheetstelescope and microscope
Total questions: 10
Worksheet time: 5mins
instrument that makes distant objects appear closer and larger
satellite
telescope
microscope
observatory
Simple microscope has a _______ lens of short focal length.
convex
concave
Plano convex
Plano concave
A__________ microscope consists of two convex lens.
Simple microscope
Compound microscope
Magnification power of microscopes can be increased by decreasing the ____________ of the lens.
Principal axis
Focal length
Centre of curvature
optic centre
The lens with ______________ focal length is called eye lens.
larger
Shorter
Zero
Negative
Travelling microscope works in the principle of ___________.
Lens
Screw gauge
vernier
telescope
__________ invented telescope in 1611.
Galileo
Newton
Kepler
Joule
The least count of travelling microscope is _______
0.1 mm
0.01 mm
0.001 mm
1 mm
