Question Discussion & Solution

In a certain code language, 'CUTE' is written as 'BTSD'.

Similarly, 'KIND' written in that code language as

KIND is written as JHMC.

Hence, "JHMC" is the correct answer.

The given equation is 

(10 N 5) L (4 N 4) M 6

Convert the above equation into a mathematical form.

(10 × 5) + (4 × 4) - 6

Now, solve the equation using the 'BODMAS' rule.

The 'BODMAS' rule is

Therefore, the equation becomes

⇒ 50 + 16 - 6

⇒ 60

Hence, the correct answer is 60.

The correct answer is Generation.

• The letter 'G' has been used for Generation in 4G technology in mobile communication.

Key Points

• Meaning of 'G' in mobile signal
  • The G in 2G, 3G and 4G stands for Generation, and they refer to the 2nd, 3rd and 4th generation of wireless technology. 
  • The higher the generation the better, fast, and powerful will be the network.
  • Letter G stands for GPRS (General Packet Radio Service).
  • It indicates the slowest speed of internet data transfer on our mobile phone.

​Additional Information

• Meaning of 'E' in mobile signal
  • Letter E stands for EDGE (Enhanced Data Rates for GSM Evolution).
  • It is also called Enhanced GPRS.
  • This technology lies somewhere in between 2G and 3G technology.
  • So, some people refer to it as 2.5G.

The correct answer is 240 J.

Key Points

• When a force is applied to an object which causes displacement along the direction of force then the work is said to be done by that force.
• The work done by a force is defined as "the product of the component of the applied force on the block in the direction of the displacement and the magnitude of this displacement" is called work done.

Additional Information

• i.e., \(W = \vec F.d\vec x = Fdx\cos \theta \)

or in terms of magnitude, it can be given as

\(W\; = \;F \times s\)

• Here both force and displacement will be along the same direction since force is causing this displacement thus Work done is a scalar quantity.
  • Here,
  • Force applied on object = F
  • Displacement of object = dx
  • Distance traveled by an object = s
  • The angle between Force and displacement = θ
• Calculation:
  • Given that,
  • Person raised the box of weight 120 N through the height of 2 m
  • i.e., F = 120 N 
  • x = 2 m
• Thus from the above explanation, we can see that
• Work = Force × Distance moved in the direction of the force
• Force of 120 N is acting downwards, Therefore
  • Work Done = 120 × 2 = 240 J