They cannot display exact materials and features would be correct!!!
That's true: isotopes are chemical elements with same atomic number (i.e. same number of protons) but different mass number (i.e. different number of protons+neutrons, so if the number of protons is the same, the number of neutrons should be different).
For instance, hydrogen has three different isotopes:
- protium, with only one proton in the nucleus
- deuterium, with one proton and one neutron
- tritium, with one proton and two neutrons
Answer:
Animal-like protists are those which cannot make their own food. These protists have the ability to move themselves and are often further subdivided into groups based on how they move. Plant-like protists are those that make their own food using sunlight and water. They can live in water or on trees.
Explanation:
Answer:
At resonance impedance of series RLC circuit is minimum and equal to resistance of the circuit
Explanation:
Let the resistance of the series RLC circuit is R
Capacitive reactance of the circuit is and inductive reactance of the circuit is
We know that impedance of the series RLC circuit is given by , here R is the resistance is inductive reactance and is capacitive reactance
At resonance capacitive reactance will be equal to inductive reactance
So
So impedance will become
So from above calculation we can say that impedance of series RLC circuit is minimum and equal to resistance of the circuit
Answer:
3.944 x 10⁴ K.
Explanation:
Let the surface temperature of star be T in absolute scale.
Total thermal radiation from its surface can be calculated with the help of
stefan's formula as follows
E = σ A T⁴
σ is a constant called stefan's constant and is equal to 5.67x 10⁻⁸ W m⁻²K⁻⁴
A is area of surface of star and T is the surface temperature.
Putting the given values
E = 5.67 X 10⁻⁸ X 4 X 3.14 X ( 5 X 10⁸ )² X T⁴
= 1780.38 X 10⁸ T⁴
At a distance of 2.5 x 10¹³ m intensity will be calculated by dividing E with area of sphere having radius equal to distance , so
Intensity at given point
= E / 4πd²
=
= 22.68 T⁴ X 10⁻¹⁸
Putting the value of given intensity at that point
.055 = 22.68 x 10⁻¹⁸ T⁴
T⁴ = 24.25 X 10¹⁷
= 242.5 X 10¹⁶
T = 3.944 x 10⁴ K.