The isotope used for the production of atomic energy is:

• U-235
• U-238
• U-234
• U-236
Correct Option: A  [ U-235 ]

Remark:

Hydro?uoric acid is not kept in glass bottles because it reacts with:

• visible light
• sodium oxide of glass
• aluminium oxide of glass
• silicon dioxide of glass
Correct Option: D  [ silicon dioxide of glass ]

Remark:

Plasma membrane in eukaryotic cells is made up of:

• Phospholipid
• Lipoprotein
• Phospholipo-protein
• Phospho-protein
Correct Option: A  [ Phospholipid ]

Remark:

Who invented the contact lens?

• Enrico Fermi
• Adolf Gaston Eugen Fick
• Sandford Fleming
• Benoit Fourneyron
Correct Option: B  [ Adolf Gaston Eugen Fick ]

Remark:

The waves which can propagate even through the vacuum,are called __________.

• Mechanical waves
• Reverse waves
• Inverted waves
• Electromagnetic waves
Correct Option: D  [ Electromagnetic waves ]

Remark:

"Seahorse" is a:

• Mammal
• Plant
• Fish
• None of the above
Correct Option: C  [ Fish ]

Remark: Seahorse (Hippocampus) is a tiny fish that named for the shape of its head, which looks like the head of a tiny horse. There are at least 50 species of seahorses.

What is the full form of ChatGPT?

• Chat Generative Programming Translator
• Chat General Programming Transistor
• Chat Generative Pre-training Transformer
• Chat General Programming Transformer
Correct Option: C  [ Chat Generative Pre-training Transformer ]

Remark: ChatGPT (Chat Generative Pre-trained Transformer) is a chatbot developed by OpenAI and launched on November 30, 2022.

Sound waves in air are

• Transverse
• Longitudinal
• Electromagnetic
• Polarized
Correct Option: B  [ Longitudinal ]

Remark:

The phenomenon involved in propagation of light waves throuhg optical fibres is :

• Dispersion of light
• Scattering of light
• Total internal reflection of light
• Refraction of light
Correct Option: C  [ Total internal reflection of light ]

Remark:

Bluetooth is a technology in communication which features

• wireless communication using radio waves
• wireless communication using infrared rays
• wireless communication using microwaves
• wireless communication using laser
Correct Option: A  [ wireless communication using radio waves ]

Remark: Bluetooth is a wireless technology using radio frequencies to share data over a short distance.