Answer:
a) least mass
Explanation:
According to the Newton's first law of motion, more the mass of a body the greater is its inertia, and inertia is the tendency of a body to resist any change to its state of rest or uniform motion.
Greater is the mass of charge least is its deflection under the influence of magnetic field.
<em>This can be explained well by the mathematical equations relating the </em><em>centripetal force and the magnetic force</em><em> on a charged mass moving in a magnetic field perpendicular to the velocity:</em>
where:
m = mass of the charged particle
v = velocity of projection of the charged mass into the magnetic field
r = radius of curvature of path of charged mass under the magnetic force
q = magnitude of charge on the particle of mass 'm'
B = intensity of magnetic field normal to 'v'
i.e.
- Speed of the charge is higher when its mass is lesser and according to the Fleming's left hand rule we known that the charge continuously faces a magnetic force while moving in the field.
& also,
- Which indicates that more is the mass of charge larger is the radius of its trajectory of motion which means lesser is its deviation.
Answer: The picture shows the elliptical galaxy.
Explanation :
There are three types of galaxies i.e.
The given picture shows an elliptical galaxy. It has a shape of the spheroid or elongated sphere. As we go farther away from the center, the brightness goes on decreasing.
Hence, the correct option is (c) " elliptical galaxy ".
Disk of dust and gas contains the new born stars and as well as young stars and the Halo region contains the old stars.
The different regions of a spiral galaxy like our Milky way tend to have characteristic populations of stars.
Halo: The halo tends to have older, red stars. In general, blue stars are larger but since they are also hotter, tend to run through their fuel faster and have shorter lives. Halo stars tend to be older stars, The halo is generally lacking in dust and low in metals.
Bulge: The outer Area of the bulge has mostly older red stars. The inner bulge has active star formation and has a mix of red and blue stars.
Disk: The disk has active star formation regions, so there are young blue stars in that region. Here are the stars that are both old stars and young stars. The blue stars are largely found on the edges of the spiral arms.
Thus disk with the dust clouds contains new and young stars. And halo region contains old stars.
#SPJ4
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A microwave has more energy than radio but less than visible light
Answer:
In an exothermic reaction the energy gained by the surroundings must be <u>equal to</u> the energy lost by the reaction.
Explanation:
Exothermic reactions occur by the loss of energy in the form of heat to the surroundings (apparatus and the system).
The heat gained can be quantitatively analysed and measured provided no product escapes the system and it is numerically equal to the amount of heat lost by the reaction.
