Which of the following radiations is the least penetrating? (A) α-rays (B) β-rays (C) γ-rays (D) X-rays

Which of the following radiations is the least penetrating?
(A) α-rays
(B) β-rays
(C) γ-rays
(D) X-rays
by

1 Answer

Answer :

(A) α-rays
by

Related questions

Radiations which is not emitted during radioactivity is – (1) α rays (2) β rays (3) γ rays (4) Cathode rays

Description : Radiations which is not emitted during radioactivity is – (1) α rays (2) β rays (3) γ rays (4) Cathode rays

Last Answer : (4) Cathode rays Explanation: Radioactivity is the process by which a nucleus of an unstable atom loses energy by emitting particles of ionizing radiation. It includes the emission of energetic alpha particles (α), beta particles (β), and gamma rays.

The mass number of an element is not changed, when it emits __________ radiations. (A) α & β (B) β & γ (C) γ & α (D) α, β, & γ

Description : The mass number of an element is not changed, when it emits __________ radiations. (A) α & β (B) β & γ (C) γ & α (D) α, β, & γ

Last Answer : (B) β & γ

Radioactive elements emit – (1) Radiowaves (2) Infrared waves (3) Ultraviolet waves (4) α, β and γ radiations

Description : Radioactive elements emit – (1) Radiowaves (2) Infrared waves (3) Ultraviolet waves (4) α, β and γ radiations

Last Answer : (4) α, β and γ radiations Explanation: The phenomenon of spontaneous emission of certain kinds of radiations by some elements is called radioactivity and the elements emitting such radiations are called ... the radioactive substances are separated in to three types, called a, b and g rays.

Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography. (A) X-rays (B) γ-rays (C) α-rays (D) β-rays

Description : Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography. (A) X-rays (B) γ-rays (C) α-rays (D) β-rays

Last Answer : (B) γ-rays

When cathode rays strike a target of high atomic weight, they give rise to – 1) α -rays (2) β and γ rays (3) X-rays (4) positive rays

Description : When cathode rays strike a target of high atomic weight, they give rise to – 1) α -rays (2) β and γ rays (3) X-rays (4) positive rays

Last Answer : (3) X-rays Explanation: When cathode rays strike a solid target of high atomic weight and high melting point such as tungsten, molybdenum, etc, they give rise to a highly pen-etrating radiation called the X-rays (LIT Physics by Dr. P.K Aganval).

Cathode rays when obstructed by metal cause emission of - (1) γ – ray (2) X – ray (3) α – ray (4) β – ray

Description : Cathode rays when obstructed by metal cause emission of - (1) γ – ray (2) X – ray (3) α – ray (4) β – ray

Last Answer : B. X – ray

Pick out the correct statement. (A) Positron is the antiparticle of electron (B) In α-decay, the ratio of neutron to proton decreases (C) Ionising power of β-rays is higher than that of α-rays (D) Speed of α-rays is more than that of γ-ray

Description : Pick out the correct statement. (A) Positron is the antiparticle of electron (B) In α-decay, the ratio of neutron to proton decreases (C) Ionising power of β-rays is higher than that of α-rays (D) Speed of α-rays is more than that of γ-ray

Last Answer : (A) Positron is the antiparticle of electron

The atomic number of a radioactive element is not changed, when it emits __________ rays. (A) α (B) β (C) γ (D) α & β

Description : The atomic number of a radioactive element is not changed, when it emits __________ rays. (A) α (B) β (C) γ (D) α & β

Last Answer : (C) γ

Pick out the wrong statement. (A) Atoms with same number of nucleons but different number of protons are called isobars (B) Atoms with same number of protons but different number of nucleons are called isoters (C) Out of α, β, and γ-rays, the one having maximum penetration power are γ-rays (D) The product formed by emission of α-particle has mass number less by 4 units than the parent nuclide

Description : Pick out the wrong statement. (A) Atoms with same number of nucleons but different number of protons are called isobars (B) Atoms with same number of protons but different number of nucleons are ... product formed by emission of α-particle has mass number less by 4 units than the parent nuclide

Last Answer : (B) Atoms with same number of protons but different number of nucleons are called isoters

β-rays emission in radioactive disintegration is always accompanied by the emission of (A) γ-rays (B) α-rays (C) Neutrons (D) None of these

Description : β-rays emission in radioactive disintegration is always accompanied by the emission of (A) γ-rays (B) α-rays (C) Neutrons (D) None of these

Last Answer : (A) γ-rays

Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters? (A) I-131 (B) Sr-90 (C) Au-198 (D) Ra-226

Description : Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters? (A) I-131 (B) Sr-90 (C) Au-198 (D) Ra-226

Last Answer : (D) Ra-226

What do radioactive substances emit? (1) Radio waves (2) Infrared waves (3) Ultraviolet waves (4) α, β and γ rays

Description : What do radioactive substances emit? (1) Radio waves (2) Infrared waves (3) Ultraviolet waves (4) α, β and γ rays

Last Answer : (4) α, β and γ rays Explanation: Of the three main types of radiation given off during radioactive decay, two are particles and one is energy; scientists call them alpha, beta and gamma after the first three letters of the Greek alphabet.

___________ remain undeflected in a magnetic field a) β particles b) α particles c) γ rays d) Proton beams

Description : ___________ remain undeflected in a magnetic field a) β particles b) α particles c) γ rays d) Proton beams

Last Answer : c) γ rays

Which of the following is the most harmful for the human being? (A) β-rays (B) X-rays (C) γ-rays (D) Ultra violet rays

Description : Which of the following is the most harmful for the human being? (A) β-rays (B) X-rays (C) γ-rays (D) Ultra violet rays

Last Answer : (C) γ-rays

The ray with high penetrating power is _____. A. a-rays B. β-rays C. y-rays D. x-rays

Description : The ray with high penetrating power is _____. A. a-rays B. β-rays C. y-rays D. x-rays

Last Answer : ANSWER: A

If α, β and γ are coefficients of linear, area l and volume expansion of a solid then

Description : If α, β and γ are coefficients of linear, area l and volume expansion of a solid then

Last Answer : If α, β and γ are coefficients of linear, area l and volume expansion of a solid then (A) α:β:γ 1:3:2 (B) α:β:γ ... C) α:β:γ 2:3:1 (D) α:β:γ 3:1:2

The mammalian DNA polymerase involved in error correction is (A) DNA polymerase α (B) DNA polymerase β (C) DNA polymerase γ (D) DNA polymerase δ

Description : The mammalian DNA polymerase involved in error correction is (A) DNA polymerase α (B) DNA polymerase β (C) DNA polymerase γ (D) DNA polymerase δ

Last Answer : Answer : B

Replication of nuclear DNA in mammals is catalysed by (A) DNA polymerase α (B) DNA polymerase β (C) DNA polymerase γ (D) DNA polymerase III

Description : Replication of nuclear DNA in mammals is catalysed by (A) DNA polymerase α (B) DNA polymerase β (C) DNA polymerase γ (D) DNA polymerase III

Last Answer : Answer : A

The immediate parent of α, β and γ endorphins is (A) Pro-opiomelanocortin (B) β-lipotropin (C) ATCH (D) Lipoprotein

Description : The immediate parent of α, β and γ endorphins is (A) Pro-opiomelanocortin (B) β-lipotropin (C) ATCH (D) Lipoprotein

Last Answer : Answer : B

Insulin receptor is made up of (A) One α-and one β-subunit (B) Two α-and two β-subunit (C) Two, α two β-and two γ-subunit (D) One α, one β-one γ-and one δ-subunit

Description : Insulin receptor is made up of (A) One α-and one β-subunit (B) Two α-and two β-subunit (C) Two, α two β-and two γ-subunit (D) One α, one β-one γ-and one δ-subunit

Last Answer : Answer : B

In the insulin receptor, tyrosine kinase domain is present in (A) α-Subunits (B) β-Subunits (C) γ-Subunits (D) δ-Subunits

Description : In the insulin receptor, tyrosine kinase domain is present in (A) α-Subunits (B) β-Subunits (C) γ-Subunits (D) δ-Subunits

Last Answer : Answer : B

Insulin binding sites are present on the (A) α-subunits of insulin receptor (B) β-subunits of insulin receptor (C) γ-subunits of insulin receptor (D) α-and β−subunits of insulin receptor

Description : Insulin binding sites are present on the (A) α-subunits of insulin receptor (B) β-subunits of insulin receptor (C) γ-subunits of insulin receptor (D) α-and β−subunits of insulin receptor

Last Answer : Answer : A

All of the following can be formed from pro-opiomelanocortin except (A) α-and β-MSH (B) β-and γ-Lipotropins (C) α-and β-Endorphins(D) FSH

Description : All of the following can be formed from pro-opiomelanocortin except (A) α-and β-MSH (B) β-and γ-Lipotropins (C) α-and β-Endorphins(D) FSH

Last Answer : Answer : D

The nucleotide binding site of G-proteins is present on their (A) α-Subunit (B) β-Subunit α- and β- (C) γ-Subunit (D) δ-Subunit

Description : The nucleotide binding site of G-proteins is present on their (A) α-Subunit (B) β-Subunit α- and β- (C) γ-Subunit (D) δ-Subunit

Last Answer : Answer : A

Characteristic absorption bands exhibited by ferrocytochrome: (A) α band (B) β band (C) α and β bands (D) α, β and γ bands

Description : Characteristic absorption bands exhibited by ferrocytochrome: (A) α band (B) β band (C) α and β bands (D) α, β and γ bands

Last Answer : Answer : D

Two molecules of vitamin A can be formed from 1 molecule of (A) α-Carotene (B) β-Carotene (C) γ-Carotene (D) All of these

Description : Two molecules of vitamin A can be formed from 1 molecule of (A) α-Carotene (B) β-Carotene (C) γ-Carotene (D) All of these

Last Answer : Answer : B

Precursor of Vitamin A is (A) α-Carotene (B) β-Carotene (C) γ-Carotene (D) All of these VITAMINS 121

Description : Precursor of Vitamin A is (A) α-Carotene (B) β-Carotene (C) γ-Carotene (D) All of these VITAMINS 121

Last Answer : Answer : D

Amylase present in saliva is (A) α-Amylase (B) β-Amylae (C) γ -Amylase (D) All of these

Description : Amylase present in saliva is (A) α-Amylase (B) β-Amylae (C) γ -Amylase (D) All of these

Last Answer : Answer : A

Instead of ester link plasmalogens possess an other link in position: (A) α (B) β (C) γ (D) None of these FATS AND FATTY ACID METABOLISM 93

Description : Instead of ester link plasmalogens possess an other link in position: (A) α (B) β (C) γ (D) None of these FATS AND FATTY ACID METABOLISM 93

Last Answer : Answer : B

When haemoglobin takes up oxygen there is a change in the structure due to the moving closer together of (A) β-chains (B) β-chains (C) γ-chains (D) α and γ chains

Description : When haemoglobin takes up oxygen there is a change in the structure due to the moving closer together of (A) β-chains (B) β-chains (C) γ-chains (D) α and γ chains

Last Answer : Answer : A

Foetal haemoglobin contains (A) Two α and two γ chains (B) Two β and two γ chains (C) Both (A) and (B) (D) None of these

Description : Foetal haemoglobin contains (A) Two α and two γ chains (B) Two β and two γ chains (C) Both (A) and (B) (D) None of these

Last Answer : Answer : A

Which type of interferon is produced by T lymphocytes? A.α B.β C.γ D. and γ β

Description : Which type of interferon is produced by T lymphocytes? A.α B.β C.γ D. and γ β

Last Answer : .γ

Claisen condensation gives__________ a) Hydroxyl compound b) β- keto ester c) Γ- diketone d) Α-diketone

Description : Claisen condensation gives__________ a) Hydroxyl compound b) β- keto ester c) Γ- diketone d) Α-diketone

Last Answer : b) β- keto ester

Nuclear reactors are provided with shield to guard against the emission of mainly __________ rays. (A) X (B) α and β (C) Neutrons & gamma (D) Infrared

Description : Nuclear reactors are provided with shield to guard against the emission of mainly __________ rays. (A) X (B) α and β (C) Neutrons & gamma (D) Infrared

Last Answer : (C) Neutrons & gamma

Which of the following three nuclear radiations is the most penetrating? w) alpha x) beta y) gamma

Description : Which of the following three nuclear radiations is the most penetrating? w) alpha x) beta y) gamma

Last Answer : ANSWER: Y -- GAMMA

Gamma rays have greatest similarity with – (1) α-rays (2) β-rays (3) X-rays (4) U.V.-rays

Description : Gamma rays have greatest similarity with – (1) α-rays (2) β-rays (3) X-rays (4) U.V.-rays

Last Answer : (3) X-rays Explanation: Gamma radiation, also known as gamma rays or hyphenated as gamma-rays and denoted as y, is electromagnetic radiation of high frequency and therefore high energy. Gamma rays ... from high energy states of atomic nuclei (gamma decay), but are also created by other processes.

Biological shield in a nuclear reactor is generally provided to protect against the (A) α-rays (B) β-rays (C) Gamma rays & neutrons (D) Electrons

Description : Biological shield in a nuclear reactor is generally provided to protect against the (A) α-rays (B) β-rays (C) Gamma rays & neutrons (D) Electrons

Last Answer : Option C

Which, of the following radiations has the least wavelength? (1) X-rays (2) a-rays (3) g-rays (4) b-rays

Description : Which, of the following radiations has the least wavelength? (1) X-rays (2) a-rays (3) g-rays (4) b-rays

Last Answer : (3) g-rays Explanation: X-rays - smaller than 10 nano metre gamma- rays - 0.0005 to 0.1 nano metre alpha-rays - 125 nano metre

Which, of the following radiations has the least wavelength ? (1) X-rays (2) a-rays (3) g-rays (4) b-rays

Description : Which, of the following radiations has the least wavelength ? (1) X-rays (2) a-rays (3) g-rays (4) b-rays

Last Answer : g-rays

Which of X-rays and gamma rays has higher penetrating power ?

Description : Which of X-rays and gamma rays has higher penetrating power ?

Last Answer : The penetrating power of gamma rays is about 100 times greater than that of X-rays.

Winch of the following is not true about X-rays? (1) have low penetrating power (2) travel with the speed of light (3) Can be reflected or refracted (4) can affect photographic plates

Description : Winch of the following is not true about X-rays? (1) have low penetrating power (2) travel with the speed of light (3) Can be reflected or refracted (4) can affect photographic plates

Last Answer : (1) have low penetrating power Explanation: X-rays and gamma rays are photons, i.e. high-energy light-waves. When emitted by a source, for example, radium or cobalt, located outside the body, they ... they can be used in diagnostic medicine to image human bones or human organs made opaque by a dye.

Which of the following is not true about X-rays? (1) have low penetrating power (2) travel with the speed of light (3) Can be reflected or refracted (4) can affect photographic plates

Description : Which of the following is not true about X-rays? (1) have low penetrating power (2) travel with the speed of light (3) Can be reflected or refracted (4) can affect photographic plates

Last Answer : have low penetrating power

Which of the following accounts for the maximum energy release in the nuclear fission process? (A) Kinetic energy of fission products (B) Radioactive decay of fission products (C) Instantaneous release of γ-rays (D) Kinetic energy of neutrons

Description : Which of the following accounts for the maximum energy release in the nuclear fission process? (A) Kinetic energy of fission products (B) Radioactive decay of fission products (C) Instantaneous release of γ-rays (D) Kinetic energy of neutrons

Last Answer : (A) Kinetic energy of fission products

Reverse transcriptase activity is present in the eukaryotic: (A) DNA polymerase α (B) DNA polymerase γ (C) Telomerase (D) DNA polymerase II

Description : Reverse transcriptase activity is present in the eukaryotic: (A) DNA polymerase α (B) DNA polymerase γ (C) Telomerase (D) DNA polymerase II

Last Answer : Answer : C

Adenylate cyclase is activated by (A) GDP-bearing α-Subunit of G-protein (B) GTP-bearing α-Subunit of G-protein (C) GDP-bearing γ-Subunit of G-protein (D) GTP-bearing γ-Subunit of G-protein

Description : Adenylate cyclase is activated by (A) GDP-bearing α-Subunit of G-protein (B) GTP-bearing α-Subunit of G-protein (C) GDP-bearing γ-Subunit of G-protein (D) GTP-bearing γ-Subunit of G-protein

Last Answer : Answer : B

Transferrin is a type of (A) Albumin (B) α-globulin (C) β1 globulin (D) γ-globulin MINERAL METABOLISM 203

Description : Transferrin is a type of (A) Albumin (B) α-globulin (C) β1 globulin (D) γ-globulin MINERAL METABOLISM 203

Last Answer : Answer : B

All the following are omega-6-fatty acids except (A) Linoleic acid (B) α-Linolenic acid (C) γ-Linolenic acid (D) Arachidonic acid

Description : All the following are omega-6-fatty acids except (A) Linoleic acid (B) α-Linolenic acid (C) γ-Linolenic acid (D) Arachidonic acid

Last Answer : Answer : B

Which of the following is omega-3 polyunsaturated fatty acid? (A) Linoleic acid (B) α-Linolenic acid (C) γ-Linolenic acid (D) Arachidonic acid

Description : Which of the following is omega-3 polyunsaturated fatty acid? (A) Linoleic acid (B) α-Linolenic acid (C) γ-Linolenic acid (D) Arachidonic acid

Last Answer : Answer : B

Which rays are most penetrating? -Do You Know?

Description : Which rays are most penetrating? -Do You Know?

Last Answer : answer:

Which of the following is the most penetrating power of radioactive rays ?

Description : Which of the following is the most penetrating power of radioactive rays ?

Last Answer : Gamma ( γ) rays have the highest penetrating power among radioactive rays .