Explore topic-wise InterviewSolutions in Current Affairs.

Finding the component of a vector we draw the vector add in the triangle legs.

Any vector directed at an angle to the horizontal can throught of as having two parts, that lie on the axis. The process of identifying these two components is known as the resolution of the vector. 

The correct option is 2 OR gate

• If A= 0 and B= 0, then both diodes D1 and D2 are reverse biased and thus both the diodes are in cut-off and thus F is low.
• If A= 0 and B= 1, D1 is reverse biased, thus does not conduct. But D2 is forward biased, thus conducts and thus pulling F to HIGH.
• If A= 1 and B= 0, D2 is reverse biased, thus does not conduct. But D1 is forward biased, thus conducts and thus pulling F to HIGH.
• If A = 1 and B = 1, then both diodes D1 and D2 are forward biased and thus both the diodes conduct and thus F is HIGH.

(i) Here, 

B₀ =12× 10⁻⁸ Tesla 

E₀ = cB₀ 

= 3× 10⁻⁸ × 12 × 10⁻⁸

= 36 V/m 

Average energy density of electric field,

u_E = \(\frac{1}{4}\)∈₀\(E^2_0\)

= \(\frac{1}{4}\) \(\times\) 8.85 × 10⁻¹² × 36 × 36

= 2867.4 × 10⁻¹² 

= 2.87× 10⁻⁹ J/m³ 

Average energy density of magnetic field, 

u_B = u_E

∴ Energy density associated with the em wave.

u = u_E+ u_B 

= 2u_E 

= 2× 2.87 × 10⁻⁹ 

= 5.74 × 10⁻⁹ J/m³

(ii) \(\frac{1}{c}\) = \(\frac{k}{ω}\) 

or c = \(\frac{ω}{k}\) 

= \(\frac{3.6\times 10^{15}}{1.2\times 10^7}\) 

= 3 × 10⁸ m/s

Power can be defined as the rate at which work is done i.e. energy converted. The formula for power is

P = W/t

A body is said to have power of 1 watt if it does work at the rate of 1 joule in 1 s.

i.e. 1 W= (1 J)/(1 S)

• Watt is the SI unit of power.
• Other units of power include ergs per second, horsepower, metric horsepower or cheval vapeur (CV)), and foot-pounds per minute.
• The unit Watt is named after the scientist James Watt. He has played a crucial role in transforming the world.

H = \(\frac{V^2t}{R}\)

= V²t x \(\frac{A}{ρl}\);

A = area of cross-section

∴ H∝ A

Or, \(\frac{H_1}{H_2}\) = \(\frac{A_1}{A_2}\) = \(\frac{1}{6}\)

Well explained here

https://www.sarthaks.com/195485/a-ball-of-mass-kg-is-thrown-vertically-upwards-by-applying-force-by-hand-if-the-hand-moves-0-2

Radio-waves in frequency range of 88-108 MHz are used for commercial FM radio and radio waves in frequency range of 300 MHz – 3000 MHz for UHF band used in cellular phones communication.

(i) In a refracting type of telescope, if we interchange objective and eyepiece lence, then it will behave like a microscope.

(ii) Advantage

(a) Brighter image

(b) Higher diameter mirrors can be easily made higher radiation is obtained.

(c) No spherical and no. chromatic abberation.

The ₂₁Sc⁴⁵ atom has 21 protons and 24 neutrons in its nucleus. 

Mass of 21 protons = 21 × 1.008143 

= 21.171003u 

Mass of 24 neutrons = 24 × 1.008986 

= 24.215664u 

Total mass = 21.171003 + 24.215664 

= 45.386667u 

Mass defect = \(\frac{368}{931}\)

= 0.395274u 

∴Atomic mass of ₂₁Sc⁴⁵ = 45.386667 – 0.395274 

= 44.991393u

Correct option is C) of my

We have given: 

Speed of balloon w.r.t ground=5 m/s (Upwards)

Speed of stone w.r.t balloon=10 m/s

So, speed of stone w.r.t ground=10+5=15 m/s

u=15 m/s (upwards)

Using relation

v=u+gt

=15-10 x 2=-5 

Thus the velocity of stone is 5 m/s (downwards) w.r.t to ground after 2 second.

Correct answer is Reptile

Correct answer is Piglet

Facultative anaerobes are bacteria that can grow in both the presence or absence of oxygen. In addition to oxygen concentration, the oxygen reduction potential of the growth medium influences bacterial growth.

Muhammad al-Idrisi was a Muslim cartographer, geographer, traveler and Egyptologist. 

d) Angiotensin’s receptors 

d) Angiotensinamide

c) Angiotensin-converting enzyme inhibitors

b) Clonidine 

c) Guanethidine

b) Tachycardia, lupus erhythromatosis

c) Angiotensin II 

The mother tells us to go in our room because she thinks that any kind of harm to her child can be caused by the stranger. Also, she thinks that her child might not be comfortable with the stranger style. We hide because we feel a little tense, nervous and anxious seeing a stranger. We feel shy, when males come home because we aren't sure how to act, don't know how others will react, or when attention is on them. 

b) Propranolol 

b) Dichlothiazide 

A ganglio blocking drug for hypertension treatment is Trimethaphan.

d) Sodium nitroprusside