What was invented by 'Zacharias Janssen'? (1) Telescope (2) Microscope (3) Stethoscope (4) Periscope

What was invented by 'Zacharias Janssen'? (1) Telescope (2) Microscope (3) Stethoscope (4) Periscope
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(2) Microscope Explanation: In Boreel's investigation Johannes also claimed his father, Zacharias Jansen, invented the compound microscope in 1590.
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Differentiate between the following pairs: (a) Telemeter and Multimeter: (b) Perimeter and Altimeter (c) Periscope and Microscope (d) Nucleon and Photon (e) Cusec and Comet

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Description : How can one can distinguish a telescope from a microscope?

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One can distinguish a telescope from a microscope by observing – (1) length (2) colour (3) size of the lens (4) length and size of the lens

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Last Answer : length and size of the lens

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Stethoscope was invented by

Description : Stethoscope was invented by

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Description : What are the differences between a microscope and a telescope?

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Description : How can one can distinguish a telescope from a microscope? -Do You Know?

Last Answer : answer:

How can one can distinguish a telescope from a microscope?

Description : How can one can distinguish a telescope from a microscope?

Last Answer : By observing size of the lens

Who Invented the Reflector Telescope ?

Description : Who Invented the Reflector Telescope ?

Last Answer : Scientist Newton invented the reflecting telescope.

Electron microscope was invented by – (1) Knoll and Ruska (2) Robert. Koch (3) Lecuwenhock (4) C.P. Swanson

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Description : Electron microscope was invented by (1) Knoll and Ruska (2) Robert Koch (3) Leeuwenhock (4) C.P. Swanson

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Description : How does a periscope work ?

Last Answer : A periscope is a type of visible device that can be used by a person in a secret location to observe a specific target. Usually the main components of this device are - mirrors , eye- ... the two telescopes are different , then the differences between them are made workable by narrowing them down.

Persistence of vision is the Principle behind: (1) Binocular (2) Cinema (3) Periscope (4) Camera

Description : Persistence of vision is the Principle behind: (1) Binocular (2) Cinema (3) Periscope (4) Camera

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A periscope works on the principle of (1) refraction (2) total internal reflection (3) diffraction (4) reflection

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A periscope works on the principle of (1) refraction (2) total internal reflection (3) diffraction (4) reflection

Description : A periscope works on the principle of (1) refraction (2) total internal reflection (3) diffraction (4) reflection

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Description : What is the working principle of stethoscope?

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Last Answer : answer:

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Last Answer : answer:

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Who invented Telescope ? -General Knowledge

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Description : Who invented the first microscope ?

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Description : What is used to make liquid periscope ?

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Description : Which one is used to make simple periscope ?

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Periscope made with any mirror

Last Answer : Uses a flat mirror

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Last Answer : Periscope works on the pirnciple of ______ of light.

Which one among the following is used to make periscope?

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What is the working principle of periscope?

Description : What is the working principle of periscope?

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What is a novo-telescope ? Advantages and disadvantages ?

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What is a telescope ?

Description : What is a telescope ?

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