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

The ray with high penetrating power is _____. A. a-rays B. β-rays C. y-rays D. x-rays
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Which of the following radiations is the least penetrating? (A) α-rays (B) β-rays (C) γ-rays (D) X-rays

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

Last Answer : (A) α-rays

The least penetrating power ray is – (1) X-Ray (2) a-Ray (3) B-Ray (4) y-Ray

Description : The least penetrating power ray is – (1) X-Ray (2) a-Ray (3) B-Ray (4) y-Ray

Last Answer : (2) a-Ray Explanation: Since alpha particles are high in ionizing power, it is difficult for them to penetrate matter thoroughly. This is because alpha particles are likely to ionize the first ... power. Beta rays have intermediate; while, Gamma Rays and X Rays have maximum penetrating power.

Which of the following has the highest penetrating power? (1) a-ray (2) b-ray (3) y-ray (4) δ-ray

Description : Which of the following has the highest penetrating power? (1) a-ray (2) b-ray (3) y-ray (4) δ-ray

Last Answer : (3) y-ray Explanation: The penetrating power is inversely related to size. Alpha particles, being the largest, penetrate the least. Gamma rays are the most penetrating of the radiations. They are highly energetic waves and are poor at ionising other atoms or molecules.

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

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

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 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 .

Assertion (A) : `beta`-particles have greater penetrating power than `alpha`-rays but less than `gamma`-rays Reason (R ) : `beta`-particles are lighte

Description : Assertion (A) : `beta`-particles have greater penetrating power than `alpha`-rays but less than `gamma`-rays Reason (R ) : `beta`-particles are lighte

Last Answer : Assertion (A) : `beta`-particles have greater penetrating power than `alpha`-rays but less than `gamma`-rays ... . If both (A) and (R ) are incorrect.

Which of the following "is"//"are" correct? a)`alpha`-rays are more penetrating then `beta`-rays. b)`alpha`-rays have greater ionizing power than `bet

Description : Which of the following "is"//"are" correct? a)`alpha`-rays are more penetrating then `beta`-rays. b)`alpha`-rays have greater ionizing power than `bet

Last Answer : Which of the following "is"//"are" correct? a)`alpha`-rays are more penetrating then `beta ... not emitted simultaneously with `alpha` and `beta`-rays

Which ray has more penetrating power ?

Description : Which ray has more penetrating power ?

Last Answer : The penetrating power of gamma rays is much higher

The least penetrating power ray is

Description : The least penetrating power ray is

Last Answer : α-rays

Half life is a term used to describe a) The penetrating ability a gamma source b) Half the total time a gamma source will be useful c) The time taken for the gamma source to reduce the strength by half d) The rate of decay of an X-ray tube

Description : Half life is a term used to describe a) The penetrating ability a gamma source b) Half the total time a gamma source will be useful c) The time taken for the gamma source to reduce the strength by half d) The rate of decay of an X-ray tube

Last Answer : c) The time taken for the gamma source to reduce the strength by half

Which rays are most penetrating? -Do You Know?

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

Last Answer : answer:

Which rays are most penetrating?

Description : Which rays are most penetrating?

Last Answer : – y-rays

Which rays are most penetrating?

Description : Which rays are most penetrating?

Last Answer : gama-rays

1. Which rays are most penetrating? 2. The headquarters of Organization of Petroleum Exporting Country is located in which city? 3. In India, in which was the service tax first introduced? 4. Macmohan Line demarcates the boundary between which countries? 5. Who laid the foundation of Rashtrakuta Empire?

Description : 1. Which rays are most penetrating? 2. The headquarters of Organization of Petroleum Exporting Country is located in which city? 3. In India, in which was the service tax first introduced? 4. ... ? 20. In which of the following years was the first Railway line between Bombay and Thane laid?

Last Answer : Answer : 1. y-rays 2. Vienna 3. 1994 4. India and China 5. Dantidurga 6. Arthropoda 7. Chandigarh 8. Cellulose 9. Mahanadi 10. Sher Shah Suri 11. 1969 12. Sobha De 13. Plastid 14. Bailadila 15 ... Lodi 16. White Paper 17. Human body 18. Tax proceeds between the States 19. Mercury and Venus 20. 1853

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).

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

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

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.

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 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

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

Before X-ray examination (coloured Xray) of the stomach, patients are given suitable salt of barium because. (1) barium is a good absorber of X-rays and helps stomach to appear clearly (2) barium salts are white in colour and this helps stomach to appear clearly (3) barium allows X-rays to pass through the stomach (4) barium salts are easily available

Description : Before X-ray examination (coloured Xray) of the stomach, patients are given suitable salt of barium because. (1) barium is a good absorber of X-rays and helps stomach to appear clearly (2) barium ... clearly (3) barium allows X-rays to pass through the stomach (4) barium salts are easily available

Last Answer : (1) barium is a good absorber of X-rays and helps stomach to appear clearly

The beam that leaves the target is called, A. The primary X-ray B. The electrons ( from the cathode) C. The secondary rays (scattered radiation) D. X-ray photons no

Description : The beam that leaves the target is called, A. The primary X-ray B. The electrons ( from the cathode) C. The secondary rays (scattered radiation) D. X-ray photons no

Last Answer : A. The primary X-ray

A filter is used in x ray machines to: A. Reduce exposure time B. Remove low energy x rays

Description : A filter is used in x ray machines to: A. Reduce exposure time B. Remove low energy x rays

Last Answer : B. Remove low energy x rays

Why radiologists do not take direct X-ray photographs of intestine ? (1) Intestines are affected by direct exposure to X-rays (2) X-rays can not cross intestine (3) X-rays are not able to capture clear picture (4) Even short exposure of X-rays causes cancer in intestine

Description : Why radiologists do not take direct X-ray photographs of intestine ? (1) Intestines are affected by direct exposure to X-rays (2) X-rays can not cross intestine (3) X-rays are not able to capture clear picture (4) Even short exposure of X-rays causes cancer in intestine

Last Answer : X-rays are not able to capture clear picture

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.

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.

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

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

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

___________ 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

A radioactive substance does not emit (A) α-ray (B) Proton (C) Position (D) β-ray

Description : A radioactive substance does not emit (A) α-ray (B) Proton (C) Position (D) β-ray

Last Answer : (B) Proton

Pick out the wrong statement. (A) The nucleus of a hydrogen atom is identical with a proton (B) A, β-ray particle is identical with an electron (C) Mass of an electron is about 1/1800th of the lightest nucleus (D) Positron is heavier than a proton

Description : Pick out the wrong statement. (A) The nucleus of a hydrogen atom is identical with a proton (B) A, β-ray particle is identical with an electron (C) Mass of an electron is about 1/1800th of the lightest nucleus (D) Positron is heavier than a proton

Last Answer : (D) Positron is heavier than a proton

Which has the least penetrating power? -Do You Know?

Description : Which has the least penetrating power? -Do You Know?

Last Answer : answer:

Which has the least penetrating power?

Description : Which has the least penetrating power?

Last Answer : – Alpha particles

Which has the least penetrating power?

Description : Which has the least penetrating power?

Last Answer : Alpha particles

.In minor oral surgery which is TRUE in regard to antibiotics: a. Amoxil is satisfactory against most oral infection. b. Metronidazole and Amoxil have the same penetrating power. c. It is evident that it will reduce post operative swelling.

Description : .In minor oral surgery which is TRUE in regard to antibiotics: a. Amoxil is satisfactory against most oral infection. b. Metronidazole and Amoxil have the same penetrating power. c. It is evident that it will reduce post operative swelling.

Last Answer : a. Amoxil is satisfactory against most oral infection.

In minor oral surgery, what is TRUE in regard to antibiotics: A. Amoxil is satisfactory against most oral infections B. Metronidazole and Amoxil have the same penetrating power C. It is evident that it will reduce post operative swelling

Description : In minor oral surgery, what is TRUE in regard to antibiotics: A. Amoxil is satisfactory against most oral infections B. Metronidazole and Amoxil have the same penetrating power C. It is evident that it will reduce post operative swelling

Last Answer : A. Amoxil is satisfactory against most oral infections

Ozone saves the biosphere by absorbing high energy radiations called _____ . (1) Infra-red (IR) (2) Gamma rays (3) Ultraviolet rays (UV) (4) X–rays

Description : Ozone saves the biosphere by absorbing high energy radiations called _____ . (1) Infra-red (IR) (2) Gamma rays (3) Ultraviolet rays (UV) (4) X–rays

Last Answer : Ultraviolet rays (UV) 

Ray Whitcombe is found dead in his office at his desk. The police have narrowed the suspects down to three people: Mrs. Barbara Whitcombe, Ray's wife; Mr. Jason McCubbins, Ray's business partner; and Mr. Harold Nichols, Ray's best friend. All three visited Mr. Whitcombe the day of his murder, but all three provide the police with stories of explanation as to the reason for their visit. Police found Mr. Whitcombe with his wrist watch still on his right arm, a torn up picture of his wife laying on the floor beside the trash can, and an ink pen in his right hand. On the desk, the police found a name plate, a telephone that was off the hook, and a personal calendar turned to the July 5th page with 7B91011 written on it. After examining this evidence, the police knew their suspect. Who was it?

Description : Ray Whitcombe is found dead in his office at his desk. The police have narrowed the suspects down to three people: Mrs. Barbara Whitcombe, Ray's wife; Mr. Jason McCubbins, Ray's business partner; ... written on it. After examining this evidence, the police knew their suspect. Who was it? -Riddles

Last Answer : Jason McCubbins, Ray's business partner. The calendar is the clue to solving this murder. The police realized that since Mr. Whitcombe was wearing his watch on his right arm, he must be left handed. But ... September, October, November. Use the first letter of each month and it spells J-A-S-O-N.

As shown in Fig. `PQ` is a ray incident on prism `ABC`. Show the corresponding refracted and emergent rays. The critical angle for the material of the

Description : As shown in Fig. `PQ` is a ray incident on prism `ABC`. Show the corresponding refracted and emergent rays. The critical angle for the material of the

Last Answer : As shown in Fig. `PQ` is a ray incident on prism `ABC`. Show the corresponding refracted and ... is refractive index of the material of prism ? .

What happens when cathode rays strike the glass walls of the cathode ray tube?

Description : What happens when cathode rays strike the glass walls of the cathode ray tube?

Last Answer : Feel Free to Answer

One of the Lehmann's rules of plane tabling, is (A) Location of the instrument station is always distant from each of the three rays from the known points in proportion to their distances (B) When looking in the direction of each of the given points, the instrument station will be on the right side of one and left side of the other ray (C) When the instrument station is outside the circumscribing circle its location is always on the opposite side of the ray to the most distant point as the inter-section of the other two rays (D) None of these

Description : One of the Lehmann's rules of plane tabling, is  (A) Location of the instrument station is always distant from each of the three rays from the  known points in proportion to their distances  ( ... to the most distant point as the inter-section of the other two rays  (D) None of these 

Last Answer : (A) Location of the instrument station is always distant from each of the three rays from the  known points in proportion to their distances 

The operation of resection involves the following steps 1. Rough orientation of the plane table 2. The three lines form a triangle of error 3. Drawing lines back through the three control points 4. Select a point in the triangle of error such that each ray is equally rotated either clockwise or anti clockwise 5. The points obtained by three rays are the correct location. The correct sequence is (A) 1, 3, 2, 4, 5 (B) 1, 2, 3, 4, 5 (C) 1, 4, 3, 2, 5 (D) 1, 3, 2, 4, 5

Description : The operation of resection involves the following steps 1. Rough orientation of the plane table 2. The three lines form a triangle of error 3. Drawing lines back through the three control points 4. Select a point in the triangle of error ... 2, 3, 4, 5 (C) 1, 4, 3, 2, 5 (D) 1, 3, 2, 4, 5

Last Answer : (A) 1, 3, 2, 4, 5