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An interface is a list of methods that must be defined by any class which implements that interface. 

It may also define constants (public static final). In Java an interface is similar to an abstract class in that its members are not implemented.

The statement is: jlavel1.setText(“ Greater”);

The first item is added at index (); the next item is added at index 1 and so forth in case of a jComboBox and jList controls.

(1) In spite of the intense cold Bachendri was warm because she was in her . well-insulated climbing gear.

(2) They started climbing unroped.

(3) Since the steep frozen slopes were hard and brittle, Bachendri had to kick the ice-axe hard to get the front teeth of the crampons to bite into the frozen surface.

(4) Bachendri and Ang Dorjee climbed faster.
We can say so because they took two hours to climb, while the earlier Summit Party had taken four hours to reach the Summit Camp.

(5) If they keep up their present pace (speed), they would be on the Summit by 1:00 p.m.

(1) When Bachendri and Ang Dorjee were resting below the South Summit, Lhatoo caught up with them.

(2) Lhatoo was holding the rope more for balance than security for Bachendri and Ang Dorjee.

(3) At those heights the normal amount of oxygen that one should breathe in should be four litres per minute.

(4) Lhatoo increased the flow of oxygen on Bachendri’s regulator because it was just two and a half litres per minute against the normal four for those heights.

(5) As the result of increase in the oxygen flow, Bachendri found even the steeper stretches comparatively easy.

The point defects that lower the density of crystal is called Schotty defects

jComboBox is like a drop down box - you can click a drop-down arrow and select an option from a list whereas jList provides a scrollable set of items from which one or more may be selected. 

getSelectedItem() for combobox 

getSelectedValue() for list

showMessageDialog() 

showConfirmDialog() 

showInputDialog()

Correct answer is 70.4

5. The value of n will be 4.

Explanation:

As given, velocity of point P is V_p = (i + j)
The velocity of Point Q is V_q = (-i + 2j)
Displacement of point P is x₁i + y₁j = (i + j) × t 
Displacement of point Q is (x₂ − 2)i + (y₂ - 1)j =  (−2i + j) × t
Displacement of point Q with respect to P is
[(x₂ − 2)i + (y₂ - 1)j] - (x₁i + y₁j) = (-i + 2j) x t - (i + j) x t 
(x₂ − x₁)i + (y₂ - y₁)j - 2i - j = (-i + 2j) x t - (i + j) x t 
(x − 2)i + (y - 1)j = (−2 it + tj)      [as (x₂ − x₁) = x and (y₂ − y₁) = y]
x − 2 = −2t  _______(i)
and y − 1 = t _______(ii)

x − 2 = −2(y − 1)
x − 2 = −2y + 2 
2y + x = 4
comparing with the given eqn n = 4

6. The value of n will be 3.

Explanation:

Let the relative velocity of boat be 'v' m/s making an angle ϴ with vertical.

Then,the velocity of river is '2v' in hrizontal direction.
Now, break velocity of boat in respective components.
v_x = 2v - vsinϴ
v_y = vcosϴ
Let width of the river be d.
So, Time required to cross the river,t d/vcos(ϴ).
Drift ,x = v_x x t = 2v - vsinϴ x  d/vcos(ϴ)
For min. drift,
dx/dϴ = 0
d/dϴ [d/v(2vsecϴ - v tanϴ)]
2vtanϴ - v secϴ = 0
sin ϴ = 1/2
ϴ = 30

This angle is the angle made with the vertical. Therefore the total angle made with the direction of river flow is 90+30=120 degree which is equal to 2π/3.

Hence, n = 3.

7. The value of n is 5.

Explanation:

Let the velocity of the swimmer be v m/s.
So, velocity along vertical direction is v sin45°
Total width = 60 m and time taken = 6 s
So, v sin45° = 60/6
v/√2 = 10
v = 10√2
or in the other way v = 10i + 100 
thus, velocity of swimmer w.r.t river = 10i + 10j - 5i
= |5i + 10j|
=√25 + 100

hence n = 5

Answer is a. survival

Four competencies of intelligence in Indian tradition are:

1. Cognitive capacity: sensitivity to context, understanding, discrimination, problem-solving and effective communication.
2. Social competence (respect for social, commitment to elders, they young and the needy, concern about others, recognising others Perspective.
3. Emotional competence: Emotional intelligence is a set of skills that underlie accurate appraisal, expression and regulation of emotions. It is the feeling side of intelligence. Some psychologists believe that the source of their difficulty may be a lack of emotional intelligence. This concept was first introduced by Shalvey and Mayer who 'considered emotional intelligence as the ability to monitor one's own and other's emotions, to discriminate among them, and to use the formation to guide one's thinking and actions." Emotional Quotient (IQ) is' used to express emotional intelligence in the same way as IQ is used to express intelligence.

Emotional intelligence is receiving increasing attention of educators for dealing with students who are affected by stresses and challenges of the outside world. They encourage cooperative behaviour and reduce their antisocial activities.

4. Entrepreneurial competence: commitment, persistence, patience, hardwork, vigilance and goal-directed behaviours.

Radio button

CREATE TABLE employee (name VARCHAR, id INTEGER);

1.It doesn't allow ranges. 

2. It requires either integers or characters and doesn't allow String.

The value of n is 41.

Explanation:

Let the relative velocity of man with respect to ground is  V_mg = V_m .
 Also, the relative velocity of rain w.r.t ground be V_rg = V_r .
And the relative velocity of rain with respect to man is V_rm .
We can say the relation between  V_m,  V_r,  V_rm as V_rm = V_r - Vm

Given,

V_m = v₀cos37°(-i) + v₀sin37°(-j) 

V_m = -4v₀/5 i - 3v₀/5 j 

and V_rm = 2v₀ i 

Hence, V_rm = V_r - Vm

V_r =2v₀i +(-4v₀/5 i - 3v₀/5 j) 

= 6v₀/5 i - 3v₀/5 j       ----(i)

Now, velocity of man with respect to ground, = -2v₀cos37° i - 2v₀sin37°j 

= -8v₀/5 i - 6v₀/5 j 

V_rm = 6v₀/5 i - 3v₀/5 j -(- 8v₀/5 i - 6v₀/5 j)

= 14v₀/5 i + 3v₀/5 j

Now, |V_rm | = √{(196 + 9)/25}v₀ = √{205/25}v₀ =√(41/5)v₀ 

Hence, from the above equation it is clear that  n =41

(d) View -> Handout Page

View -> Handout Page displays slides on a page as seen when printed.

(c) Change Case

Change Case is used to make selected sentence to All Capital Letters or All Small Letters.

Correct answer is

(c) WAN

Correct answer is

(d) Phishing

b. Signs

Which of the following is NOT classified as nonverbal communication is Signs

Correct answer is

a. horizontal line is passive and relaxed; a vertical line is strong and energetic.

c. Violet

Violet is historically associated with royalty and therefore, exclusivity. The lighter tints symbolize femininity while the darker shades symbolize aristocracy.

Yes it is true that non conventional sources of energy are clean and non polluting. But it has exception also.

(i) Electromagnetic wave consists of electric field vector E and magnetic field vector B vibrating transversly and sinusodly at right angle to each other.

(ii) The direction of propagation of electromagnetic (emf) wave is perpeandicular to the plane containing E and B vectors and is obtained by vector (E x B).

Concept used:-

Trick for writing cube of a number.

Method & Calculation:-

• Write the cube of 4 & 6 in three digit form i.e. (064216)
• Now multiply all the digits within themselves i.e. (4 x 6) = 24
• Now multiply the result obtained from step (2) by 3 i.e. 24 x 3 = 72
• Now multiply 72 and 46 i.e. 72 x 46 = 331
• Now keep the unit digit vacant and add 064216 & 3312 i.e. 064216 + 3312_ = 97336

Given:

Sum of 2 numbers = 47

Product of 2 numbers = 550

Formula Used:

(a + b)² = a² + b² + 2ab

Calculations:

Let the 2 numbers be x and y respectively.

x + y = 47

Squaring both sides, we get

(x + y)² = (47)²

⇒ x2 + y2 + 2xy = 2209

⇒ x2 + y2 + 2 × 550 = 2209

⇒ x2 + y2 = 2209 – 1100

⇒ x2 + y2 = 1109

∴ The sum of squares of 2 number is 1109.