Cleavage is the process of division of zygote cell. It starts just 2-3 hours of fertilization. All divisions are mitotic and holoblastic as division furrows divides the eggs com...
Menstrual cycle is the series of cyclic changes that occur in the reproductive tract of human females with a periodicity of 28 days. It is characterized by loss of vaginal blood...
WAP that allows a user to create and modify an array of size 10. Below is the menu that should be displayed. Clear the arrayInsert element at locationDelete element at locationS...
Ectoderm is one of the three germinal layers. The entire body of tadpole and frog is derived from this layer. The fate of ectoderm i.e. the tissue and organs derived from this l...
Factors Affecting the Velocity of Sound in a Gas(a) Effect of temperature: For one mole of an ideal gas having pressure P and volume V, equation of state is,(b) Effect of pressu...
Velocity of Sound Wave in a MediumSound waves are longitudinal waves. Sound waves travel in all media, namely solids, liquids, and gases. When a longitudinal wave passes through...
Velocity of Sound in Gas: Newton's FormulaNewton assumed that when sound waves propagate through gas, compression and rarefaction are produced in the medium. The changes of thes...
Neurulation is the process of formation of nerve cord from the ectoderm of embryo. It takes place after gastrulation i.e. formation of three germinal layers (i.e. ectoderm, meso...
ReverberationIt is the persistence or prolongation of sound in an enclosure (room or hall) as a result of multiple reflections from the walls, ceiling, and other materials even ...
pH of water at 24°c is 7. What effect does increase in temperature results in pH of water?
1)pH will be more than 7
2) pH will be less than 7
3) pH will be equal to 7
4) can't be determined
Option 2 is correct ans .
Dissociation of water is an endothermic reversible reaction.
When temperature is increased , for an endothermic reaction in equilibrium , it shifts the equilibrium to forward direction i.e. more product is formed which in this case means : more water is dissociated ( more H+ concentration ) is obtained . Ph= negative logarithm of H+ concentration so, more H+ concentration means, lesser Ph. so , whole ph range gets changed when temperature is increased i.e at that time, our neutral point is lesser than 7 but, still water is neutral !
Why is sky red/yellow in the evening and blue in the day?
At dawn and dusk, large amount of blue and violet light(shorter wavelength) has been scattered so, the light that is recieved by an observer is mostly of a longer wavelength and therefore appears to be red.
The electric potential of earth is same every where why?
Has 0 Answers
How to make a dynamic website ? What language should I learn?
What is the minimum distance between a source of the sound and a reflector to hear an echo?
Let S be the distance between the source of sound and reflector.
V be the velocity of sound in air.
t be the total time taken by the sound to travel from source to reflector and back to the source.
2S = Vt
or, S = (Vt)/2
We can hear distinct sounds if they reach our ear after an interval of 0.1s or more
That is, t = 0.1s and V = 340 ms-1
Therefore, S = (340 x 0.1)/2 = 17 m.
This is required minimum distance to hear an echo.
What is the IUPAC name of this compound.?
@sandesh_Ghimire where is iodo group? You have not mentioned.
Is there any effect of gravity on fire??
There is, for sure, effect of gravity on fire. We know for a fact that fires on Earth are "pointy" while those in zero-gravity are "round". This is because fire is simply glowing gas. Gas is matter and matter has weight. For a body to have weight, gravity must influence it in some way.