Optic fibres are mainly used for which purpose?

Optic fibres are mainly used for which purpose?
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– Communication
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Optic fibres are mainly used for which purpose? -Do You Know?

Description : Optic fibres are mainly used for which purpose? -Do You Know?

Last Answer : answer:

Optic fibres are mainly used for which purpose?

Description : Optic fibres are mainly used for which purpose?

Last Answer : Communication

1. Respiration can occur in the absence of oxygen in which thing? 2. How many times was the term of the Lok Sabha extended upto 6 years? 3. Optic fibres are mainly used for which purpose? 4. Asia has large areas of inland drainage. Why is it so ? 5. Pandit Jawaharlal Nehru was born in which year?

Description : 1. Respiration can occur in the absence of oxygen in which thing? 2. How many times was the term of the Lok Sabha extended upto 6 years? 3. Optic fibres are mainly used for which purpose? 4. ... Shipki La located? 20. Which Chola ruler converted the Bay of Bengal into a Chela lake'?

Last Answer : Answer : 1. Yeast 2. Once 3. Communication 4. Rainfall is seasonal and scanty 5. 1889 6. Netherlands 7. ICICI Bank 8. Plasma lemma 9. Ivory coast 10. Ghaggar-Hakra 11. Estimates Committee 12. A protein 13. ... 15. At Daimabad 16. South Korea 17. E, coli 18. 14 and 6 19. Sutlej valley 20. Rajendra I

Optic fibres are used in : (1) CAT scans (2) X-ray photos (3) Ultrasound scans (4) Endoscopy

Description : Optic fibres are used in : (1) CAT scans (2) X-ray photos (3) Ultrasound scans (4) Endoscopy

Last Answer : (4) Endoscopy Explanation: Optical fibres are used in endoscopic instruments that enable doctors to view internal body parts without having to perform surgery. Fernando Alves Martins of Portugal ... level of full spectrum illumination that was needed for detailed viewing, and colour photography.

Optic fibres are used in : (1) CAT scans (2) X-ray photos (3) Ultrasound scans (4) Endoscopy

Description : Optic fibres are used in : (1) CAT scans (2) X-ray photos (3) Ultrasound scans (4) Endoscopy

Last Answer : Endoscopy

Optical fibres are mainly used in- (1) Communication (2) Weaving (3) Musical Instruments (4) Food Industry

Description : Optical fibres are mainly used in- (1) Communication (2) Weaving (3) Musical Instruments (4) Food Industry

Last Answer : (1) Communication Explanation: Optical Fibres used for Broadcasting. These cables are used to transmit high definition television signals which have a greater bandwidth and speed.

Messages in optic fibres reach faster.

Description : Messages in optic fibres reach faster.

Last Answer : As photons travel much faster than electrons.

Give reasons: a) Optic fibres do not corrode.

Description : Give reasons: a) Optic fibres do not corrode.

Last Answer : As optic fibres do not react with air or water

Optic fibres are used in place of wire cables because (1) they generate strong magnetic fields (2) they do not generate magnetic fields (3) they do not require boosting (4) they are more economical

Description : Optic fibres are used in place of wire cables because (1) they generate strong magnetic fields (2) they do not generate magnetic fields (3) they do not require boosting (4) they are more economical

Last Answer : they do not generate magnetic fields

Purkinje fibres mainly help in contraction of `:-`

Description : Purkinje fibres mainly help in contraction of `:-`

Last Answer : Purkinje fibres mainly help in contraction of `:-` A. Right auricle B. Left ventricle C. Ventricles D. Aorta

The following are true about the autonomic nervous system: a. the preganglionic fibres are mainly myelinated, slow conducting B fibres b. the postganglionic fibres are mainly unmyelinated C fibres c. all preganglionic neurones are cholinergic neurons d. all above

Description : The following are true about the autonomic nervous system: a. the preganglionic fibres are mainly myelinated, slow conducting B fibres b. the postganglionic fibres are mainly unmyelinated C fibres c. all preganglionic neurones are cholinergic neurons d. all above

Last Answer : all above

The lateral spinothalamic tract: a. carries fibres which terminate in the thalamus b. contains mainly the second-order neurones. c. carries fibres that carry information on temperature and pain d. all above

Description : The lateral spinothalamic tract: a. carries fibres which terminate in the thalamus b. contains mainly the second-order neurones. c. carries fibres that carry information on temperature and pain d. all above

Last Answer : all above

With regard to the autonomic nervous system: a. the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves b. the preganglionic sympathetic fibres are usually longer than preganglionic parasympathetic fibres c. acetylcholine is the neurotransmitter at the ganglia of both sympathetic and parasympathetic nervous system d. botulin toxin blocks acetylcholine receptors

Description : With regard to the autonomic nervous system: a. the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves b. the preganglionic sympathetic fibres ... the ganglia of both sympathetic and parasympathetic nervous system d. botulin toxin blocks acetylcholine receptors

Last Answer : the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves

Optical fibres are based on the phenomenon of – (1) Interference (2) Dispersion (3) Diffraction (4) Total Internal Reflection

Description : Optical fibres are based on the phenomenon of – (1) Interference (2) Dispersion (3) Diffraction (4) Total Internal Reflection

Last Answer : (4) Total Internal Reflection Explanation: An optical fiber (or optical fibre) is a flexible, transparent fiber made of glass (Silica) or plastic, slightly thicker than a human hair. It functions as a ... is kept in the core by total internal reflection. This causes the fiber to act as a waveguide.

Optical fibres are based on the phenomenon of (1) Interference (2) Dispersion (3) Diffraction (4) Total Internal Reflection

Description : Optical fibres are based on the phenomenon of (1) Interference (2) Dispersion (3) Diffraction (4) Total Internal Reflection

Last Answer : Total Internal Reflection

Cloudy nights are wanner compared nights, because clouds mainly – (1) Absorb heat from the atmosphere send it towards earth (2) Prevent cold waves from the sky descending on earth (3) Reflect back the heat given by earth (4) Produce heat and radiate it toward earth

Description : Cloudy nights are wanner compared nights, because clouds mainly – (1) Absorb heat from the atmosphere send it towards earth (2) Prevent cold waves from the sky descending on earth (3) Reflect back the heat given by earth (4) Produce heat and radiate it toward earth

Last Answer : (3) Reflect back the heat given by earth Explanation: It is because the night side of Earth will radiate infra-red radiation (heat) back into space. When there is cloud cover, the clouds act like a blanket and trap the heat close to the ground just like a blanket traps heat close to our body.

Major portion of the earth’s crust is mainly constituted by - (1) Oxygen and Iron (2) Oxygen and Silicon (3) Silicon and Iron (4) Silicon and Aluminium

Description : Major portion of the earth’s crust is mainly constituted by - (1) Oxygen and Iron (2) Oxygen and Silicon (3) Silicon and Iron (4) Silicon and Aluminium

Last Answer : (2) Oxygen and Silicon Explanation: Oxygen is the most abundant element in the earth’s crust, comprising 46.6% or the crust by weight. Silicon 28%, aluminum 8.2%, iron 5.6%, calcium 4.2%, sodium 2.5%, magnesium 2.4%, potassium, 2.0%, and titanium 0.61% also comprise the crust.

The base of an electric iron is brightly polished mainly - (1) to make it smooth and frictionless (2) to make it rust-proof (3) to reduce heat loss by radiation (4) to make it more durable

Description : The base of an electric iron is brightly polished mainly - (1) to make it smooth and frictionless (2) to make it rust-proof (3) to reduce heat loss by radiation (4) to make it more durable

Last Answer : (3) to reduce heat loss by radiation Explanation: Polished surfaces are poor radiators of heat. So loss of heat on that account is reduced and the electric iron remains hotter than otherwise.

The 'Greenhouse effect' is mainly due to increase in atmospheric – (1) Ozone (2) Nitrogen (3) Sulphur dioxide (4) Carbon dioxide

Description : The 'Greenhouse effect' is mainly due to increase in atmospheric – (1) Ozone (2) Nitrogen (3) Sulphur dioxide (4) Carbon dioxide

Last Answer : (4) Carbon dioxide Explanation: Carbon dioxide is the primary greenhouse gas that is contributing to recent climate change, 72% of the totally emitted greenhouse gases is carbon dioxide (CO2), 18% Methane ... (NOx). Carbon dioxide emissions therefore are the most important ca s e of global warming.

The atmosphere is heated mainly by – (1) Insulation (2) Conduction (3) Radiation (4) Convection

Description : The atmosphere is heated mainly by – (1) Insulation (2) Conduction (3) Radiation (4) Convection

Last Answer : (3) Radiation Explanation: Changes in weather involve air movements, formation of clouds, and precipitation. Energy is needed to make all these things happen. That energy comes from the sun. Heat energy ... radiation. Hot bodies such as the sun radiate their energy mainly in the form of short waves.

The base of an electric iron is brightly polished mainly - (1) to make it smooth and frictionless (2) to make it rust-proof (3) to reduce heat loss by radiation (4) to make it more durable

Description : The base of an electric iron is brightly polished mainly - (1) to make it smooth and frictionless (2) to make it rust-proof (3) to reduce heat loss by radiation (4) to make it more durable

Last Answer : (3) to reduce heat loss by radiation Explanation: Polished surfaces are poor radiators of heat. So loss of heat on that account is reduced and the electric iron remains hotter than otherwise.

The ‘Greenhouse effect’ is mainly due to increase in atmospheric (1) Ozone (2) Nitrogen (3) Sulphur dioxide (4) Carbon dioxide

Description : The ‘Greenhouse effect’ is mainly due to increase in atmospheric (1) Ozone (2) Nitrogen (3) Sulphur dioxide (4) Carbon dioxide

Last Answer :  Carbon dioxide 

Cloudy nights are warmer compared nights, because clouds mainly (1) absorb heat from the atmosphere send it towards earth (2) prevent cold waves from the sky descending on earth (3) reflect back the heat given by earth (4) produce heat and radiate it toward earth

Description : Cloudy nights are warmer compared nights, because clouds mainly (1) absorb heat from the atmosphere send it towards earth (2) prevent cold waves from the sky descending on earth (3) reflect back the heat given by earth (4) produce heat and radiate it toward earth

Last Answer : reflect back the heat given by earth

The atmosphere is heated mainly by (1) Insolation (2) Conduction (3) Radiation (4) Convection

Description : The atmosphere is heated mainly by (1) Insolation (2) Conduction (3) Radiation (4) Convection

Last Answer : Radiation

Name two textile industries using any animal fibres. Name an important State where these industries are located. -Geography

Description : Name two textile industries using any animal fibres. Name an important State where these industries are located. -Geography

Last Answer : Two textiles industries are : 1. Woollen Industry State—Punjab. 2. Silk Industry State—Karnataka.

Name two textile industries using animal fibres. -SST 10th

Description : Name two textile industries using animal fibres. -SST 10th

Last Answer : Animal fibres Important Centres Silk industry Kashmir; Karnataka—Bangalore and Mysore. Woollen industry Punjab and Haryana—Dhariwal, Amritsar, Ludhiana; Uttar Pradesh— Kanpur; Madhya Pradesh—Gwalior.

Name the process by which silk and wool fibres are made into fabric. -Science-7

Description : Name the process by which silk and wool fibres are made into fabric. -Science-7

Last Answer : Wool and Silk are made into fabric by the process of weaving.

Optical fibres are made up of thin strands of (a) copper material (b) silver material (c) glass like material -Technology

Description : Optical fibres are made up of thin strands of (a) copper material (b) silver material (c) glass like material -Technology

Last Answer : (c) Optical fibres are made up of thin strands of glass like material.

What are Purkinje fibers? What is the function of the Purkinje fibres? -Biology

Description : What are Purkinje fibers? What is the function of the Purkinje fibres? -Biology

Last Answer : answer:

What are spindle fibres? -Biology

Description : What are spindle fibres? -Biology

Last Answer : Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during ... division: mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle.

What is the function of the spindle fibres? -Biology

Description : What is the function of the spindle fibres? -Biology

Last Answer : Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during ... division: mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle.

What organelles produce spindle fibres? -Biology

Description : What organelles produce spindle fibres? -Biology

Last Answer : Centrioles produce spindle fibers in animal cells. These spindle fibers are active during mitosis when the DNA has replicated and the chromosomes are pulled apart during anaphase. Plants cells do not have centrioles but they still undergo mitosis.

Centrioles are present only in animals. In such a case how the spindle fibres are held in the cell division of plants? -Biology

Description : Centrioles are present only in animals. In such a case how the spindle fibres are held in the cell division of plants? -Biology

Last Answer : answer:

What is the function of xylem fibres. -Biology

Description : What is the function of xylem fibres. -Biology

Last Answer : The xylem is the vascular tissue responsible for the upward conduction of water and nutrients from the roots. The xylem tissue moves water and nutrients to various parts of the plant such as shoots and leaves. Its major components include xylem parenchyma, xylem fibers, tracheids, and xylem vessels

Phloem fibres function? -Biology

Description : Phloem fibres function? -Biology

Last Answer : Bast fibre (also called phloem fibre or skin fibre) is plant fibre collected from the phloem (the "inner bark", sometimes called "skin") or bast surrounding the stem of certain dicotyledonous plants. They support the conductive cells of the phloem and provide strength to the stem.

Purkinje fibres are found in `:-`

Description : Purkinje fibres are found in `:-`

Last Answer : Purkinje fibres are found in `:-` A. Brain B. liver C. eyes D. Heart

Longest fibres are found in

Description : Longest fibres are found in

Last Answer : Longest fibres are found in A. Jute B. Cotton C. Sun Hemp D. Coir

Bundles of striated muscle fibres called fasciculi are surrounded by a sheath called :-

Description : Bundles of striated muscle fibres called fasciculi are surrounded by a sheath called :-

Last Answer : Bundles of striated muscle fibres called fasciculi are surrounded by a sheath called :- A. Epimysium B. Perimysium C. Exomysium D. Endomysium

The surface of nerve fibres bear narrow areas called

Description : The surface of nerve fibres bear narrow areas called

Last Answer : The surface of nerve fibres bear narrow areas called A. Schwann cells B. Schwann nodes C. Nissl granules D. Nodes of Ranivier

Myelinated and unmyelinated nerve fibres are found in PNS respectively are

Description : Myelinated and unmyelinated nerve fibres are found in PNS respectively are

Last Answer : Myelinated and unmyelinated nerve fibres are found in PNS respectively are

Cells which envelop nerve fibres and form myelin sheath around the axon are

Description : Cells which envelop nerve fibres and form myelin sheath around the axon are

Last Answer : Cells which envelop nerve fibres and form myelin sheath around the axon are

Myelinated and unmyelinated nerve fibres are found in PNS respectively are

Description : Myelinated and unmyelinated nerve fibres are found in PNS respectively are

Last Answer : Myelinated and unmyelinated nerve fibres are found in PNS respectively are

Cells which envelop nerve fibres and form myelin sheath around the axon are

Description : Cells which envelop nerve fibres and form myelin sheath around the axon are

Last Answer : Cells which envelop nerve fibres and form myelin sheath around the axon are

Collagen fibres are secreted by

Description : Collagen fibres are secreted by

Last Answer : Collagen fibres are secreted by A. Mast cells B. Macrophage C. Histiocytes D. Fibroblasts

Yellow fibres are present in

Description : Yellow fibres are present in

Last Answer : Yellow fibres are present in A. Arrange in bundles B. Singly and branched C. Singly and undranched D. Unbranched & arrange in bundles

Assertion :- Each chromatid is attached with two spindle fibres during S-phase :- Reason :- During Anaphse-I each chromosome is found in bivalent form

Description : Assertion :- Each chromatid is attached with two spindle fibres during S-phase :- Reason :- During Anaphse-I each chromosome is found in bivalent form

Last Answer : Assertion :- Each chromatid is attached with two spindle fibres during S-phase :- Reason :- During ... . D. If both Assertion & Reason are false.

Assertion :- Kinetochore is essential for cell division. Reason :- Kinetochores serve as the sites of attachment of spindle fibres to the chromosome.

Description : Assertion :- Kinetochore is essential for cell division. Reason :- Kinetochores serve as the sites of attachment of spindle fibres to the chromosome.

Last Answer : Assertion :- Kinetochore is essential for cell division. Reason :- Kinetochores serve as the sites of ... D. If both Assertion & Reason are false.

At metaphase, chromosmes are attached to the spindle fibres by their

Description : At metaphase, chromosmes are attached to the spindle fibres by their

Last Answer : At metaphase, chromosmes are attached to the spindle fibres by their A. Centromere B. Satellites C. Secondary cnstrictions D. Kinetochores

Part of Chromosome which joins with spindle fibres is -

Description : Part of Chromosome which joins with spindle fibres is -

Last Answer : Part of Chromosome which joins with spindle fibres is - A. Chromatid B. Chromonema C. Chromomere D. Centromere

Muscle fibres having rounded ends are

Description : Muscle fibres having rounded ends are

Last Answer : Muscle fibres having rounded ends are A. Unstriped muscles B. Smoothe muscles C. Striated muscles D. All the above