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Q:

Which one of the following statements is not correct?

A) The response of the ear to sound of increasing intensity is approximately logarithmic. B) The sensitivity of the human ear does not vary with the frequency of the sound.
C) When two or more waves traverse the same medium, the displacement of any element of the medium is the algebraic sum of the displacements due to each wave. D) Longitudinal waves can travel in all media-solids, liquids and gases.
 
Answer & Explanation Answer: B) The sensitivity of the human ear does not vary with the frequency of the sound.

Explanation:

The human ear can respond to minute pressure variations inthe air if they are in the audible frequency range, roughly 20 Hz -20 kHz. In fact, tests conducted show an increased sensitivity in the 3000 Hz range which is the optimal amplification frequency in the human ear. So, the sensitivity of the human ear varies with the frequency of the sound.

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Filed Under: Physics
Exam Prep: Bank Exams

Q:

The difference between the selling prices of an article sold at 4% and 3% profits is Rs.3 The cost price of the article is :

A) Rs. 400 B) Rs. 350
C) Rs. 300 D) Rs. 100
 
Answer & Explanation Answer: C) Rs. 300

Explanation:
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Filed Under: Profit and Loss
Exam Prep: Bank Exams

Q:

Which one of the following physical quantities has the same dimensions as that of Planck’s constant h?

A) Linear momentum B) Angular momentum
C) Force D) Potential energy
 
Answer & Explanation Answer: B) Angular momentum

Explanation:

In S.I. System unit of angular momentum is "joule.Second".

SI unit of Planck's constant is joule-seconds(j-s).

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Filed Under: Physics
Exam Prep: Bank Exams

Q:

'Agronomy' is the practice of raising ______________

A) Plants and Animals B) Crop plants
C) Agriculture D) Fruit plants only
 
Answer & Explanation Answer: A) Plants and Animals

Explanation:
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Filed Under: General Awareness
Exam Prep: Bank Exams

Q:

The spring constant of a spring depends on its

A) length only B) material only
C) length and its diameter D) thickness, its diameter and its material
 
Answer & Explanation Answer: D) thickness, its diameter and its material

Explanation:

In dealing with a coil spring the spring constant will depend on the stiffness of the spring material, the thicknessof the wire from which the spring is wound and, diameterof the turns of the coil, the number of turns per unit length and the overall length of the spring.

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Filed Under: Physics
Exam Prep: Bank Exams

Q:

Which of the following bacterium causes crown gall disease in plants?

A) Bacillus thurigiensis B) Agrobacterium tumefaciens
C) Pseudomonas fluorescens D) None of these
 
Answer & Explanation Answer: B) Agrobacterium tumefaciens

Explanation:
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Filed Under: Biology
Exam Prep: Bank Exams

Q:

Which of the following pairs of Indian State and tribal population are correct?

A. Madhya Pradesh : Largest tribal population

B. Mizoram : Highest percentage of tribal population out of the total population of the State

C. Chhattisgarh : Second largest tribal population after Madhya Pradesh

D. Arunachal Pradesh : Second highest percentage of tribal population out of the total population of the State after Mizoram

 

Select the correct answer using the code given below.

A) 1 and 2 only B) 2 and 4 only
C) 1, 2 and 3 D) 2, 3 and 4
 
Answer & Explanation Answer: A) 1 and 2 only

Explanation:

Madhya Pradesh has the largest Tribal population. It has more than 1.6 crore Schedule Tribe population who are 21% of state population according to 2011 census.Second highest is Odisha by numbers.The population of Mizoram in 2001 Census has been 888,573. Of them, 839,310 are Scheduled Tribes (STs) constituting 94.5 per cent of the total population of the state.The population of Nagaland in 2001 Census has been 1,990,036. Of these, 1,774,026 are Scheduled Tribes (STs) constituting 89.1 per cent of the total population of the state.The total population of Arunachal Pradesh in 2001 Census has been 1,097,968. Of these 705,158 persons are Scheduled Tribes (STs), constituting 64.2 per cent of the total population

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Filed Under: Indian Geography
Exam Prep: Bank Exams

Q:

Ring of Fire is found commonly in_________

A) Pacific Ocean B) Atlantic Ocean
C) Indian Ocean D) Arctic Ocean
 
Answer & Explanation Answer: A) Pacific Ocean

Explanation:
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Filed Under: World Geography
Exam Prep: Bank Exams