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  • 0 answers
  • 1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

In two kingdom classification, there was no differentiation between the eukaryotes and prokaryotes, unicellular and multicellular and photosynthetic and non-photosynthetic organisms. In the two-kingdom classification the bacteria, blue-green algae, fungi, mosses all were included under the kingdom Plantae. It placed together groups which widely differed from each other. A large number of organisms did not fall into any category. Thus, the two-kingdom classification was insufficient and inadequate.

The five kingdom classification resolved the issues as it considered other factors like cell structure, mode of nutrition, thallus organisation, reproduction and phylogenetic relationships. This system of classification placed the organisms into five different categories. All the prokaryotes were placed under Kingdom Monera. The unicellular eukaryotes were placed under Kingdom Protista. The fungi occupied a separate kingdom. Thus, it proved to be adequate and much better than the two-Kingdom classification. 

  • 5 answers

Shubham Saxena ???? 5 years, 4 months ago (5214500)

The photoelectric effect is the emission,, when electromagnetic,radiation such as light, hits a material. Electrons emitted in this manner are called photoelectrons. The phenomenon is studied in condensed matter , and Quantum  to draw inferences about the properties of atoms, molecules and solids. The effect has found use in electronic devices specialized for light detection and precisely timed electron emission.......... Thank you.........

☆•..¤( Prateek )¤..•☆ 5 years, 4 months ago (9592725)

That's my answer. What about you?✌

☆•..¤( Prateek )¤..•☆ 5 years, 4 months ago (9592725)

The photoelectric effect is the emission of electrons when electromagnetic radiation, such as light, hits a material. Electrons emitted in this manner are called photoelectrons. The phenomenon is studied in condensed matter physics, and solid state and quantum chemistry to draw inferences about the properties of atoms, molecules and solids. The effect has found use in electronic devices specialized for light detection and precisely timed electron emission.In classical electromagnetic theory, the photoelectric effect would be attributed to the transfer of energy from the continuous light waves to an electron. An alteration in the intensity of light would change the kinetic energy of the emitted electrons, and sufficiently dim light would result in the emission delayed by the time it would take the electrons to accumulate enough energy to leave the material. The experimental results, however, disagree with both predictions. Instead, they show that electrons are dislodged only when the light exceeds a threshold frequency. Below that threshold, no electrons are emitted from the material, regardless of the light intensity or the length of time of exposure to the light. Because a low-frequency beam at a high intensity could not build up the energy required to produce photoelectrons like it would have if light's energy was coming from a continuous wave, Einstein proposed that a beam of light is not a wave propagating through space, but a collection of discrete wave packets—photons. Emission of conduction electrons from typical metals requires a few electron-volt (eV) light quanta, corresponding to short-wavelength visible or ultraviolet light. In extreme cases, emissions are induced with photons approaching zero energy, like in systems with negative electron affinity and the emission from excited states, or a few hundred keV photons for core electrons in elements with a high atomic number.[1] Study of the photoelectric effect led to important steps in understanding the quantum nature of light and electrons and influenced the formation of the concept of wave–particle duality.[2] Other phenomena where light affects the movement of electric charges include the photoconductive effect, the photovoltaic effect, and the photoelectrochemical effect.

Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 4 months ago (4803610)

Thanks for your answer? ✌

Yogita Ingle 5 years, 4 months ago (2577571)

The photoelectric effect cannot be explained by considering light as a wave. However, this phenomenon can be explained by the particle nature of light, in which light can be visualized as a stream of particles of electromagnetic energy. These ‘particles’ of light are called photons. The energy held by a photon is related to the frequency of the light via Planck’s equation:

E = h? = hc/λ

Where,

  • E denotes the energy of the photon
  • h is Planck’s constant
  • ? denotes the frequency of the light
  • c is the speed of light (in a vacuum)
  • λ is the wavelength of the light
  • 1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

Equity Shares

Preference Shares

Full right to participate in management

Has no right to participate in management

Dividend is paid at the end

Preference is given in providing dividend

Refund of capital is not possible

Refund of capital is possible in case of redeemable preference shares

On winding up of the company, capital is refunded after the preference shares

Preference is given in refunding the capital

  • 1 answers

Dilipan Dilipan 5 years, 4 months ago (9375189)

Jjjiiiuii yfghytj
  • 3 answers

Haridasan Sankaran 5 years, 4 months ago (6464334)

Because it is a shadow in light the light make them become like that.

Elizabeth Martin 5 years, 4 months ago (2924592)

The shadow jumped before the child because the source of light was behind the child

Rajesh Sharma Rajesh Sharma 5 years, 4 months ago (9611118)

Robert Iouis Stevenson
  • 3 answers

Vatsal Lad 5 years, 4 months ago (9855735)

How you told answer is this

Vatsal Lad 5 years, 4 months ago (9855735)

Can you solve this sums and send

Divya Thakur 5 years, 4 months ago (9299483)

-i=1
  • 2 answers

Tannu Khan 5 years, 2 months ago (9702172)

Which chapter?

Tannu Khan 5 years, 2 months ago (9702172)

Okay
  • 0 answers
  • 1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

 

Ownership Capital : Ownership capital consists of the amounts contributed by the owners as well as their profit re-invested in the business. In a partnership firm, the funds contributed by the partners as capital are called ownership capital. Ownership capital remains permanently invested in the business.

Borrowed Capital: Borrowed fund include all funds available in the form of loans or credits. Loans are raised to business firms for specified periods at fixed rates of interest.

  • 4 answers

Aishee Mistri 5 years, 4 months ago (9588001)

For their tusks

09 Nitika Narayan Singh 6B 5 years, 4 months ago (9688846)

For their tusks

Haridasan Sankaran 5 years, 4 months ago (6464334)

They are killed for their tusks

V. Haasitha 5 years, 4 months ago (9696350)

Elephats are killed for their tusks
  • 1 answers

Mantavya Sharma Pandit 5 years, 4 months ago (9695315)

Changes brought about by a person or by nature which are harmful are known as undesirable or nonagreeable changes. Examples: Rain causing destruction by floods, souring of milk
  • 2 answers

Mohammad Rahil Sheikh 5 years, 4 months ago (9361620)

Good morning

Ayush Kholiya 5 years, 4 months ago (9699217)

Good morning mam
  • 1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

Ao and A.U. both are the units of distances but 1Ao = 10-10m and 1A.U. = 1.496× 1011m.

 

  • 4 answers

Vaishu Hunachikatti 5 years, 4 months ago (9027786)

Send me problems

Poorvi Arya 5 years, 4 months ago (9609469)

baby syrup- mililiter sun flower oil - mililiter indigo- litter hair oil - mililiter ice-cream - mililiter

Divya Khatiwada 5 years, 4 months ago (9695430)

baby syrup- mililiter sun flower oil - mililiter indigo- litter hair oil - mililiter ice-cream - mililiter

Divya Khatiwada 5 years, 4 months ago (9695430)

ok
  • 1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

The following account for their anger against the dikus:

(i) The land policies of the British were destroying their traditional land system.

(ii) Hindu landlords and moneylenders were taking over their land.

(iii) Missionaries were criticising their traditional culture.

  • 1 answers

Nirmaan Kamboj Manu 5 years, 4 months ago (9700237)

Thank 4
  • 2 answers

Vidushi Malik 5 years, 4 months ago (9775735)

Hey mate, here's your answer......कठपुतली को सदा दूसरों के इशारों पर नाचने से दुःख होता है क्योंकि उसे चारों ओर से धागों के बंधन से बाँध रखा गया था। धागे में बंधना उसे पराधीनता लगती है इसीलिए उसे गुस्सा आता है।

Navratan 7Th B 5 years, 4 months ago (9695184)

कठपुतली को सदा दूसरों के इशारों पर नाचने से दुःख होता है क्योंकि उसे चारों ओर से धागों के बंधन से बाँध रखा गया था। ... धागे में बंधना उसे पराधीनता लगती है इसीलिए उसे गुस्सा आता है।
  • 1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

 The structure of the compound 3-Hydroxy butanal  is shown here-

  • 2 answers

Tanya Srivastava 5 years, 4 months ago (9696524)

This is the principle of centrifugation- It is generally used to separate milk and cream, or to separate blood and its components. In daily life, it is used by washing machines to squeeze out water from wet clothes.

Aarushi Erande 5 years, 4 months ago (9225273)

This is the principle of centrifugation- It is generally used to separate milk and cream, or to separate blood and its components. In daily life, it is used by washing machines to squeeze out water from wet clothes.
  • 1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

A cooperative organisation is an association of persons, usually of limited means, who have voluntarily joined together to achieve a common eco­nomic end through the formation of a democratically controlled organisation, making equitable dis­tributions to the capital required, and accepting a fair share of risk and benefits of the undertaking.

  • 2 answers

Aman Jethuri 5 years, 4 months ago (9218060)

?

Yogita Ingle 5 years, 4 months ago (2577571)

Agriculture and industry go hand in hand.
(i) the agro-industries have given a major boost to agriculture by raising its productivity.
(ii) Agriculture needs pumps, fertilizers, insecticides etc, which creates demand for industry to produce such items.
(iii) competitiveness of manufacturing industries as well as efficiency of production processes are both improved.

  • 1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

Newton’s conclusion about the magnitude of gravitational forces is summarized symbolically as

F = Gm1m2/ r2

where,

  • F is the gravitational force between bodies
  • m1 is the mass of one of the objects
  • m2 is the mass of the second object
  • r is the distance between the centres of two objects
  • G is the universal gravitational constant

The constant proportionality (G) in the above equation is known as the universal gravitation constant. The precise value of G was experimentally determined by Henry Cavendish in the century after Newton’s death. The value of G is found to be G = 6.673 x 10-11 N m2/kg2.

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Ananya K 5 years, 4 months ago (9535613)

When the liquid is spun rapidly, the denser particles are forced to the bottom and light lighter particles stay at the top. principle is used in​ Thank your teacher & they could win INR75K
  • 1 answers

Himanshu Jaglan 5 years, 4 months ago (9579195)

No

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