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Showing: Class 9 (1637 questions)

by GIANSH GUPTA KHUNDKER · Class 9

Which lossless algorithm uses a "dictionary" to replace recurring sequences of data with a reference or index?

Cyber Data Compression 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which type of compression allows for the exact reconstruction of the original data?

Cyber Data Compression 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which of the following file formats typically uses lossy compression?

Cyber Data Compression 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Run-Length Encoding (RLE) is most effective on data that has:

Cyber Data Compression 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

What is a "compression ratio"?

Cyber Data Compression 0 6 answers 50%
by GIANSH GUPTA KHUNDKER · Class 9

What is the main purpose of data compression?

Cyber Data Compression 0 1 answers 100%
by GIANSH GUPTA KHUNDKER · Class 9

Sound waves are called mechanical waves because:

Science Sound 0 1 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

When an object moves in a circular path with constant speed, its motion is:

Science Motion 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

In Rutherford's gold foil experiment, most of the alpha particles passed straight through the foil. This led to the conclusion that:

Science Structure of Atom 0 1 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

An atom has an atomic number of 12. What is its valency?

Science Structure of Atom 0 1 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which subatomic particle was discovered by J.J. Thomson using the cathode ray experiment?

Science Structure of Atom 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which tissue is responsible for the increase in the girth (width) of a plant stem?

Science Tissues 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which of the following cannot be broken down into simpler substances by chemical reactions?

Science Is Matter Around Us Pure 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which of the following will show the "Tyndall effect"?

Science Is Matter Around Us Pure 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which of the following is an example of a mixture?

Science Is Matter Around Us Pure 0 1 answers 100%
by GIANSH GUPTA KHUNDKER · Class 9

When a gas is compressed, what happens to the particles?

Science Matter in Our Surroundings 0 1 answers 100%
by GIANSH GUPTA KHUNDKER · Class 9

What is the SI unit of temperature?

Science Matter in Our Surroundings 0 1 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which of the following has the strongest interparticle forces?

Science Matter in Our Surroundings 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which of the following is not matter?

Science Matter in Our Surroundings 0 2 answers 100%
by GIANSH GUPTA KHUNDKER · Class 9

The police caught the thief hiding ______ the bridge.

English Prepositions 0 1 answers 0%

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