Download App

Structure of the Atom — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
MCQ
The cathode ray experiment was done for the first time by:
  • A
    Goldstein.
  • B
    J. J. Thomson.
  • C
    Dalton.
  • D
    Rutherford.
✓

Answer

  1. J. J. Thomson.

Explanation:

The first model of an atom was given by J.J. Thomson. According to him, an atom consists of a sphere of positive charge with negatively charged electrons embedded in it.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q. [1 M]" from Structure of the Atom→Structure of the Atom — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

The speed-time graph of a body is straight line parallel to time axis.The body has:
→
Application of nitrogenous manure to a plant causes.
→
Spacing between particles of gas can be decreased. Hence, __________?
→
Sustainable agriculture involves:
→
Communication satellites move in 44400km around the earth. Assume that the only force acting on it is that due to the earth, then what is acceleration of such a satellite? (Take, mass of earth = 6 × 1024kg)
→
A man is stranded in the middle of a perfectly smooth island of ice, where there is no friction between the ground and his feet. Under these circumstances,
→
If a ball is thrown upwards from the surface of earth:
→

When both crops and livestock are raised on the same farm, it is known as:

  1. Mixed farming.
  2. Mixed cropping.
  3. Intercropping.
  4. Crop rotation.
→
The universal law of gravitation was postulated by:
→
Amoeba acquires its food through a process, termed:
→