Intensive property is the classification of property that does not affect density
Answer: Oil )Explanation:
Here Oil is the most viscous liquid.
The liquid with the most intermolecular force is high viscous. viscosity is how smoothly a liquid flows and how hardly the liquid flows it is highly viscous.
Answer:
41.8° to the vertical ( west of North) , 44.6 s
Explanation:
Using Pythagoras theorem, taking the direction it must go line as the hypotenuse
vh² = vs² + vd² vs is the speed of the stream, vh is the speed in the direction it must go to the vertical and vd is the speed going directly north
3 ² = 2² + vd²
9 - 4 = vd²
√5 = vd
2.24 m/s = vd which is the resultant speed
the direction it will go = tan θ = 2 / 2.24
θ = tan⁻¹(2 / 2.24) = 41.8° to the vertical ( west of North)
b)t = distance / v = 100 / 2.24 = 44.6 s
Answer:
Explanation:
Work function of aluminium is 4.1 eV .
Therefor light of minimum energy of 4.1 eV will be required to cause the emission of electrons.
If we use this frequency of light or energy of light to effect ejection of photoelectrons from cesium , it will be easily ejected because energy requirement for this metal is lower ( work function is lower 2.1 eV ). than the energy of photon falling on it.
If we use this frequency of light or energy of light to effect ejection of photoelectrons from aluminium , it will be not ejected because energy requirement for this metal is high ( work function is higher 5.1 eV ) . Even if we increase the intensity of light , electrons will not be ejected because energy of each photon depends upon the frequency .