Explore topic-wise InterviewSolutions in Current Affairs.

Temperature is measured by thermometer.

Correct option is (a) Programmed and non-programmed.

Correct option is (d) Rational.

Temperature of human body is measured by clinical thermometer

(a) the measured times are same

(b) the measured speeds are same

EXPLANATION:  

The time of fall t = √(2h/g) and the final speed v=√(2gh). The time period of the pendulum clock T=2π√(l/g). If the acceleration due to the gravity at the moon is g' = g/6, the actual time of fall will be t' = √6.t, i.e. √6 time more than that on the earth. (c) is not true. 

Similarly, the actual speed v' =v/√6, i.e. only 1/√6 th of v. (d) is not true. Now the time period of the pendulum clock will be T'=√6.T, i.e. it will run √6 time slower than on the earth. Therefore the √6 times longer time of fall will be measured exactly the same by the √6 times slower clock. So (a) is true. 

Since the clock shows the same time taken to fall through the same height, the measured speed will also be the same. (b) is true.

(c) remain same

EXPLANATION: 

The frequency of a spring-mass system depends only on the mass and the spring constant, none of which changes in the accelerating car. So the frequency remains the same. Option (c).  

(a) the measured times are same

(b) the measured speeds are same

EXPLANATION:  

The time of fall t = √(2h/g) and the final speed v=√(2gh). The time period of the pendulum clock T=2π√(l/g). If the acceleration due to the gravity at the moon is g' = g/6, the actual time of fall will be t' = √6.t, i.e. √6 time more than that on the earth. (c) is not true. 

Similarly, the actual speed v' =v/√6, i.e. only 1/√6 th of v. (d) is not true. Now the time period of the pendulum clock will be T'=√6.T, i.e. it will run √6 time slower than on the earth. Therefore the √6 times longer time of fall will be measured exactly the same by the √6 times slower clock. So (a) is true. 

Since the clock shows the same time taken to fall through the same height, the measured speed will also be the same. (b) is true.

(a) A simple pendulum.

(b) A physical pendulum.

EXPLANATION:  

Since on the moon g changes, only that time period will change which depends on the value of g. The time period of a simple pendulum and the physical pendulum is a function of g so their time period will change on the moon. (a) and (b) are true. The time period of a torsional pendulum and the spring-mass system is not dependent on the value of g, so they will not change on the moon. (c) and (d) not true.

(d) √6 times slower.

EXPLANATION:  

The time period of the pendulum of the clock on the earth T =2π√(l/g). On the moon g'=g/6. The time period on the moon T' =2π√6l/g) =√6*2π√(l/g) =√6T.  

So the pendulum will take √6 times more time in one oscillation on the moon and it will run √6 times slower. The option (d) is true.

(a) A simple pendulum.

(b) A physical pendulum.

EXPLANATION:  

Since on the moon g changes, only that time period will change which depends on the value of g. The time period of a simple pendulum and the physical pendulum is a function of g so their time period will change on the moon. (a) and (b) are true. The time period of a torsional pendulum and the spring-mass system is not dependent on the value of g, so they will not change on the moon. (c) and (d) not true.

A ‘bearhug’ is the bear’s tight embrace. Hyenas never laugh. But their faces look like that. Crocodiles do not weep but tears come when they swallow their victims.

There are five common features in stanza 2. These features are the sun, the air, the water, peaceful harvest, hands and the labour.

The correct answer is 933

Technology has created a revolution in the life of disabled learners.

a. Disabled students have an adequate educational opportunities but application of computer based technology has created a sea of changes in available options for disabled students.

b. Computer programs have been designed to make it easier for disabled students to access material, communicate their ideas and work and participate in educational experiences.

The correct answer is 5 : 8

Number of females = 3732

Number of males = 4000

The required sex ratio = 3732/4000 = 933/1000

Thus, there are 933 females per 1000 males.

Correct option is C.

The number of milk teeth = 20 and the number of permanent teeth = 32

The required ratio

= Number of milk teeth/ Number of permanent teeth

= 20/32

= 5/8

= 5:8

The correct answer is (i) and (ii) 

correct option is B.

On discussion with such people, the following facts are known 

• They feel bad when people show them sympathy or laugh at them. 
• They face difficulty in regular works. 
• They take more time in doing work than other people. 
• They get success by giving more labour.

There are 8 dots embossed in the Braille script is Flase.

1. Sun flower looks like a single flower.

2. But is actually a bunch of flowers. 

3. The small flowers in the bunch are called ‘florets’. 

4. The florets in the centre are called disc florets. 

5. The florets along the rim are called ray flowers.

Correct option is B) roots
 

1. As we remove petals, right on the thalamus is seated a bulb like structure called ovary. 

2. Just above it a fine tube like structure called style goes up ending in a somewhat flat bead like structure called stigma. 

3. This whole structure from ovary to stigma is the pistil or one female reproductive part. 

4. All the parts present on the pistil together called as gynoecium.

Above the thalamus, there is a green tubelike structure called the calyx.

Correct option is D) Ginger

Androecium and Gynoecium are the male and female parts of flowers.

Correct option is B) Begonia

The small flowers in the bunch are called ‘florets’.

Correct option is C) Bud

A flower that has four or more whorls is called a complete flower.

Correct option is B) tuberous stem

The correct option is B) Anthers.

A flower in which any of these four whorls is missing is an incomplete flower.

A flower that has either stamens or pistils is called a unisexual flower.

Correct option is A) male garnets

The correct option is A) Roots.

The correct option is A) male garnets.

1. I find relationship between the weight of the seeds and the dispersal mechanism. 

2. For example : 

Seeds of calotropis. 

a) These are light and have hairy structure at one end. 

b) So they travel with wind and settle at a suitable place to germinate. 

c) Milk weed, cotton seeds, etc. are all dispersed by wind. 

3. Another example : 

Coconut fruit 

4. 

a) The outer covering of the seed has empty spaces filled with air and are fibrous, 

b) The coconut fruit floats on water and reaches the ground some where. There it germinates. Seeds of lotus is another example. 

5. Another example : 

Neem fruit.

a) Birds like Bulbuls, Mynahs, crows eat the outer fleshy part gets digested in the food canal and the seed coats of them become tender. 

b) They are then dispersed to other places as bird droppings. 

6. Similarly animals, Human beings carry the seeds to other places.

The correct option is D) seeds.

The correct option is C) flower.

The correct option is D) All.

The correct option is A) nodes.

1. Obtained marks of students in exams 0,1,2,3 

2. The number of goals made in football.

1. Ordinary or Binomial classification 

2. Multi-attribute classification

When facts are classified according to their description or properties (attributes), the process is called Attributive /Qualitative classification.

This classification involves the categorization of facts on the basis of two or more than two properties.

Two types of classification methods are there according to statistics.