No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question
  • 3 answers

Bharti Gupta 4 years, 6 months ago

Speed = wave length÷ frequency. Speed = frequency × wave length.

Amrita Kushwaha 4 years, 6 months ago

Velocity = Frequency * Wavelength

Meghna Thapar 4 years, 6 months ago

Velocity of sound = Frequency × Wavelength

  • 2 answers

Alok Jha😊😁 4 years, 6 months ago

The spreading and mixing of two substances with another substance due to the motion of its particle is called diffusion . The region of water molucles from higher concentration to lower concentration is called osmosis

Prince Gond 4 years, 6 months ago

Diffusion is the mixing of a substance to another substance due to motion of its particles Osmosis is defined as the spontaneous movement of water molecules through a membrane
  • 1 answers

Bharti Gupta 4 years, 6 months ago

1. Plant cell are larger than animal cell. 2. Cell wall is present in plant cell but absent in animal cell. 3.plastids are present in plant cell but absent in animal cell. 4. Plant cell lake centrosomes and centroiles but they are present in animal cell. 5. Plant cell have permanent and large central vacoule but animal cell have small and temporary.
  • 1 answers

Yogita Ingle 4 years, 6 months ago

Simple permanent tissues are of three types: Parenchyma, Collenchyma, and Sclerenchyma. Parenchyma is two types

  1. Chlorenchyma
  2. Aerenchyma.
  • 1 answers

Yogita Ingle 4 years, 6 months ago

All cellular processes take place in a water medium. All the reactions that take place within our body and within the cells occur between substances that are dissolved in water. Substances are also transported from one part of the body to the other in a dissolved form. Hence organisms need to maintain the level of water within their bodies to stay alive. Terrestrial life forms need fresh water for this since their bodies cannot tolerate or get rid of the high amounts of dissolved salts in saline water. Plants require large amount of water for carrying out transport through xylem.

  • 1 answers

Yogita Ingle 4 years, 6 months ago

Peptic ulcers are ulcers that form in the stomach or the upper part of the small intestine, called the duodenum. An ulcer in the stomach is called a gastric ulcer and an ulcer in the duodenum is called a duodenal ulcer.

  • 2 answers

All Rounder Adarsh 4 years, 6 months ago

Prosgesterone

Yogita Ingle 4 years, 6 months ago

The menstrual cycle is a series of cyclic physiologic changes that take place inside the female reproductive tract in primates. The whole cycle takes around 28 days to complete. The end of the cycle is accompanied by the breakdown of uterine endothelium, which gets released in the form of blood and mucous through the ******. This is known as menses. The follicle stimulating hormone (FSH), luteinizing hormone (LH), estrogen, and progesterone are the various hormones that regulate the menstrual cycle. The level of FSH and LH secreted from the anterior pituitary gland increases during the follicular phase. FSH secreted under the influence of RH (releasing hormone) from the hypothalamus stimulates the conversion of a primary follicle into a graafian follicle. The level of LH increases gradually leading to the growth of follicle and secretion of estrogen. Estrogen inhibits the secretion of FSH and stimulates the secretion of luteinizing hormone. It also causes the thickening of the uterine endometrium. The increased level of LH causes the rupturing of the graafian follicle and release the ovum into the fallopian tube. The ruptured graafian follicle changes to corpus luteum and starts secreting progesterone hormone during the luteal phase. Progesterone hormone helps in the maintenance and preparation of endometrium for the implantation of the embryo. High levels of progesterone hormone in the blood decrease the secretion of LH and FSH, therefore inhibiting further ovulation.

  • 2 answers

All Rounder Adarsh 4 years, 6 months ago

Millimeter of mercury

Yogita Ingle 4 years, 6 months ago

The earth is surrounded by an envelope of air known as the atmosphere. This atmospheric air extends up to 300 kilometre above the earth’s surface, and iclings to the earth due to gravity. The atmospheric air exerts a force on all the objects in the atmosphere and on the earth. The force or thrust exerted by the atmospheric air on a unit area is defined as atmospheric pressure. The approximate value of atmospheric pressure on the earth’s surface is 1.013 x 105 Pa. The atmospheric pressure at a point is the same in all directions.

  • 1 answers

Prince Gond 4 years, 6 months ago

Macro nutrient are used in large amount Whereas micro nutrient are used in small amount
  • 1 answers

Tanisha Chhikara 4 years, 6 months ago

They don't twinkle in reality but their light get reflected from their path
  • 0 answers
  • 1 answers

Prince Gond 4 years, 6 months ago

6CO2 +12H2O - C6H12O11
  • 1 answers

Prince Gond 4 years, 6 months ago

Due to presence of Hydrogen and Oxygen
  • 1 answers

Meghna Thapar 4 years, 6 months ago

People depend on biodiversity in their daily lives, in ways that are not always apparent or appreciated. Human health ultimately depends upon ecosystem products and services (such as availability of fresh water, food and fuel sources) which are requisite for good human health and productive livelihoods. People depend on plants for food, clean air, water, fuel, clothing, and shelter. Nearly all food webs begin with plants, the primary producers. During photosynthesis, green plants use sunlight to change carbon dioxide from the air and water into simple sugars made of carbon, hydrogen, and oxygen.
 

  • 2 answers

All Rounder Adarsh 4 years, 6 months ago

JJ THOMSON MODEL OF AN ATOM

Vaibhav Saini 4 years, 6 months ago

JJ THOMSON MODEL OF AN ATOM
  • 2 answers

All Rounder Adarsh 4 years, 6 months ago

513m

Yogita Ingle 4 years, 6 months ago

Speed of sound = 342m/s
Echo returns in time, t =3s
Distance travelled by sound ,= v x t  = 342 x 3  =1026 m
As the sound has to travel twice the distance from the source to and the reflecting surface during an echo.
Distance of the reflecting surface from the source = 1026/2 =513 m

  • 0 answers
  • 1 answers

Meghna Thapar 4 years, 6 months ago

This movement or spreading out is due to the fact that in liquids the particles are moving randomly. Diffusion in gases: When two or more different gases, like oxygen and nitrogen are mixed they will mix themselves evenly. We call this mixing of particles diffusion. This is due to the random movement of particles.

  • 4 answers

Sakshi Keshwani 4 years, 6 months ago

deoxyribonucleic acid

Shyam Narayan 4 years, 6 months ago

Deoxy ribonucleic acid

Teranika Tyagi 4 years, 6 months ago

the full form is Deoxyribo nucleic acid

Arpit Raj 4 years, 6 months ago

Deoxyribo nuclie acid
  • 2 answers

Sakshi Keshwani 4 years, 6 months ago

it is possible that we may not survive and may lead ultimately to the death

Arpit Raj 4 years, 6 months ago

We will die
  • 1 answers

Prince Gond 4 years, 6 months ago

No,because its death rate is low in comparison to saars and aids
  • 1 answers

Harshita Walia 4 years, 6 months ago

1 Isotope of uranium is used as fuel in nuclear reactors. 2 isotope of cobalt is used as treatment of cancer. 3 isotope of iodine is known as treatment of goitre.
  • 1 answers

Yogita Ingle 4 years, 6 months ago

Uses of Isobars

Following are the some of the uses of isobars:

  • Nuclear reactors use isobars of uranium
  • For the treatment of cancer, isobars of cobalt are used
  • Isobars of iodine are used in the treatment of goiter
  • 0 answers
  • 1 answers

Antriksha Akash 4 years, 6 months ago

P=m×v P=mv
  • 2 answers

Antriksha Akash 4 years, 6 months ago

Temperature

Yogita Ingle 4 years, 6 months ago

Average kinetic energy of a gas is directly proportional to the absolute temperature.

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Download myCBSEguide App