KCET · Physics · Nuclear Physics
The thermonuclear reaction of hydrogen inside the stars is taking place by a cycle of operations. The particular element which acts as a catalyst is
- A Nitrogen
- B Oxygen
- C Helium
- D Carbon
Answer & Solution
Correct Answer
(D) Carbon
Step-by-step Solution
Detailed explanation
In carbon cycle, carbon is a reactant and as well as an end product.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- Two identical rods \(A C\) and \(C B\) made of two different metals having thermal conductivities in the ratio \(2: 3\) are kept in contact with each other at the end \(C\) as shown in the figure. \(A\) is at \(100^{\circ} \mathrm{C}\) and \(B\) is at \(25^{\circ} \mathrm{C}\). Then the junction \(C\) is atKCET 2007 Medium
- A thermodynamic system undergoes a cyclic process \( A B C \) as shown in the diagram. The work done by the system per cycle is
KCET 2019 Medium - A particle executes SHM with amplitude \(0.2 \mathrm{~m}\) and time period \(24 \mathrm{~s}\). The time required it to move from the mean position to a point \(0.1 \mathrm{~m}\) from the mean position isKCET 2012 Hard
- A uniform electric field in the plane of the paper as shown. Here \(A, B, C\) and \(D\) are the ponits on the circle. \(V_{1}, V_{2}, V_{3}\) and \(V_{4}\) are the potentials at those points respectively. Then
KCET 2013 Easy - A force between two protons is same as the force between proton and neutron. The nature of the force isKCET 2014 Hard
- For a given electric current the drift velocity of conduction electrons in a copper wire is \(v_d\) and their mobility is \(\mu\). When the current is increased at constant temperatureKCET 2023 Easy
More PYQs from KCET
- A coin placed on a rotating turn table just slips if it is placed at a distance of \(4 \mathrm{~cm}\) from the centre. If the angular velocity of the turn table is doubled it will just slip at a distance ofKCET 2021 Easy
- A radio-active elements has half-life of 15 years. What is the fraction that will decay in 30 years?KCET 2020 Medium
- Which of the following property is true for the given sequence? \(\mathrm{NH}_{3}>\mathrm{PH}_{3}>\mathrm{AsH}_{3}>\mathrm{SbH}_{3}>\mathrm{BiH}_{3}\) ?KCET 2021 Easy
- Cooking is fast in a pressure cooker, becauseKCET 2009 Easy
- Identify the correctly matched pair/pairs of the germ layers and their derivatives.
A. Ectoderm-Epidermis
B. Endoderm-Dermis
C. Mesoderm-Muscles
D. Mesoderm-Notochord
E. Endoderm-Enamel of teethKCET 2009 Hard - Corpus callosum connects theKCET 2022 Medium